Is gravity a force?

  Рет қаралды 473,628

Fermilab

Fermilab

Күн бұрын

Is gravity a force? The answer to that simple question is remarkably complicated and depends crucially on the theoretical framework in which the question is asked and answered. In this video, Fermilab’s Dr. Don Lincoln takes on this surprisingly tricky question.
Quantum gravity:
• Quantum Gravity
Loop quantum gravity:
• Loop Quantum Gravity
Superstrings:
• Superstrings
Fermilab physics 101:
www.fnal.gov/pub/science/part...
Fermilab home page:
fnal.gov

Пікірлер: 2 600
@charmgezos
@charmgezos Жыл бұрын
So much respect for this man. The best explanations, sturdy, reliable, without long narrations or drama, but not boring either!
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
WHAT IS E=MC2 IS SPACE AS what is gravity (ON/IN BALANCE). Consider TIME AND time dilation ON BALANCE. c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. In other words, WHAT IS E=MC2 IS SPACE AS what is gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!!! Indeed, consider what is THE EARTH/ground ON BALANCE !! The stars AND PLANETS are POINTS in the night sky. The rotation of WHAT IS THE MOON matches the revolution, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!!! Indeed, consider WHAT IS THE EYE ON BALANCE. Now, consider, ON BALANCE, what is the fully illuminated (AND setting/WHITE) MOON !!! So, ON BALANCE, consider what is the orange (AND setting) Sun !!! ON BALANCE, it is the SAME SIZE as WHAT IS THE EYE !!! CLEARLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); as the stars AND PLANETS are POINTS in the night sky. Consider TIME AND time dilation ON BALANCE. Indeed, WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. Now, notice what is the TRANSLUCENT AND BLUE sky ON BALANCE; AS what is THE EARTH is ALSO BLUE. GREAT !!! So, consider, ON BALANCE, why and how it is that there is something instead of nothing. (BALANCE AND completeness go hand in hand.) It ALL does CLEARLY make perfect sense ON BALANCE !!!! A given PLANET (including WHAT IS THE EARTH) sweeps out equal area in equal TIME, AS ELECTROMAGNETISM/energy is CLEARLY (AND NECESSARILY) proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!!! GREAT !!! By Frank Martin DiMeglio Consider what is THE SUN. Consider what is THE EYE. The stars AND PLANETS are POINTS in the night sky. This CLEARLY explains and proves what is the fourth dimension. By Frank Martin DiMeglio
@Tiberiump
@Tiberiump Жыл бұрын
What if a random dude, with great imagination and the ability to understand and visualize how mechanisms work knows what is gravity? What if his answer is agreed by math, observations, theory and the reality and has implications on everything, from transport to energy production and matter manipulation? I'm that guy & if I get 10k likes to my account, I will make a video explaining what gravity is in such a way that even 7 years old's will understand. ps to anybody wondering why I want followers first: I've spent too much time and energy on this question to give the answer away for free.
@mattblack6736
@mattblack6736 Жыл бұрын
@@Tiberiump You kinda sound like an a$$hole tbh
@mb-3faze
@mb-3faze 10 ай бұрын
"I'm partly right, some of the time" would make a great t-shirt slogan.
@martinstubs6203
@martinstubs6203 3 ай бұрын
Talking like he does in this video, he is not a scientist.
@johnBSadro
@johnBSadro Жыл бұрын
I am a retired physicist pushing 80 years old. Whenever I see and hear this guy I am delighted to be here!
@bing43
@bing43 Жыл бұрын
​@Noelle Leger gravity is just the effect caused by energy(mass) . The smaller space energy is kept in the higher the pit hole created by mass.(Einstein theory ) ___________Light,all particles are waves . ___________imagine a straight rope 🪢. U put energy and make it go up and down quickly and a particle with hight equal to the energy you put in is created and travells in the Rope 🪢 in the speed of light 🕯️.lol
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
The ultimate mathematical unification (AND UNDERSTANDING) of physics/physical experience combines, BALANCES, AND includes opposites. The BALANCE of what is gravity WITH what is inertia/INERTIAL RESISTANCE requires and involves TIME AND time dilation ON/IN BALANCE, AS gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); AS this CLEARLY explains the fourth dimension; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. INSTANTaneity is fundamental to what are TIME AND time dilation ON/IN BALANCE. Accordingly, ON BALANCE, INSTANTaneity is fundamental to what is the FULL and proper understanding of physics/physical experience; AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. What is GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. What is E=MC is taken directly from F=ma, AS the rotation of WHAT IS THE MOON matches the revolution; AS the stars AND PLANETS are POINTS in the night sky. Great. INDEED, c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. “Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED electromagnetic/gravitational force/ENERGY, AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE). A given PLANET (including what is THE EARTH) sweeps out equal area in equal TIME. Great. What is E=MC is taken directly from F=ma. Consider TIME AND time dilation ON/IN BALANCE. INDEED, consider what is THE EYE ON BALANCE !!! Notice WHAT IS the fully illuminated AND setting/WHITE MOON ON BALANCE !!! NOW, consider what is the TRANSLUCENT AND BLUE sky ON BALANCE !!! So, consider what is the orange AND setting Sun ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/as) what is GRAVITATIONAL force/ENERGY, AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. Consider TIME AND time dilation ON/IN BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE). GREAT !!!! BALANCE AND completeness go hand in hand. Carefully consider, ON BALANCE, why and how it is that there is something instead of nothing !!!! By Frank Martin DiMeglio
@antog9770
@antog9770 Жыл бұрын
​​@@bing43 the satellites are the prove of the opposite: if there isn't a force, there isn't an acceleration, which means that a still body will continue to be still whenever the effect of the gravity is removed; instead the observations suggest that a still body will have a velocity different from 0 after a limited exposure to a gravitational field. The gravity can only be a force, coherently with the classical definition of force. Returning to satellites, if the gravitational force was apparent, we wouldn't observe the typical motion of the satellites around the planets, we would have circular trajectories which would be parallel and at the same time incident with the "right lines" of the near space, which doesn't make sense... The coherence is a principle of reality, the description of the gravitation must be coherent with all the rest...
@kevino.7348
@kevino.7348 Жыл бұрын
Are you pushing 80, or is 80 pulling you?
@kevino.7348
@kevino.7348 Жыл бұрын
@Noelle Leger Uhhh, what?
@user-ux4jn5xx9c
@user-ux4jn5xx9c Жыл бұрын
I am extremely interested in physics but as I get deeper into the field the math and concepts start to elude me. I am grateful that there are folks like Don Lincoln that can help explain the subject!
@LiquidAudio
@LiquidAudio Жыл бұрын
Great explanation, as an ex science teacher I really appreciate your answer. People so often shoot from the hip without realising how little they really know!
@pikiwiki
@pikiwiki 8 ай бұрын
Very accurate claim
@helpmechangetheworld
@helpmechangetheworld Жыл бұрын
I very much appreciate your sturdy attitude, not jumping to conclusions until we get actual results. A lot of science communicators, and science enthusiasts tend to forget the core principles of science somedays...
@faisafarrah9043
@faisafarrah9043 Жыл бұрын
Enough Don. Stop your meandering, and TELL US THE TRUTH
@JanG859
@JanG859 Жыл бұрын
On the other hand, when Galileo first invented science, it was to enrich the individual. So I'm right!
@helpmechangetheworld
@helpmechangetheworld Жыл бұрын
@Noelle Leger that escalated quick! An option that hasn't been considered with gravitons is a geometric Interpretation, where the gravitons literally pull on anything they touch, stealing energy from what they touch, in the process. This is one possibility.
@fu3g
@fu3g Жыл бұрын
nathanoakley1980 does a response video on his channel. good stuff! 📐🫡
@garypalmer997
@garypalmer997 Жыл бұрын
So true. I've seen video where one scientist will say something is "certain" but they're treating their opinion as a scientific fact alone side using actual scientific facts. Then I watch his videos and he gives you the true scientific answers and then tells us his opinion after the fact. Very refreshing.
@richard84738
@richard84738 Жыл бұрын
When he overviews several theories and the result is "we just don't know" somehow it feels so satisfying. It's like he is the only person out there who really gets it, and gives it to us straight. "It's complicated" lol
@dansandstrom9109
@dansandstrom9109 Жыл бұрын
"Theory" comes after Experimentation validating the Cause of an Effect observed in Nature/Physical Reality.
@JamieDelour
@JamieDelour Жыл бұрын
@Noelle Leger As a layman watching a few of these videos , my understanding was its earth moving towards the free falling object at 9.8m/s, but how do you make sense of that when considering all the directions of a sphere?
@ChinnuWoW
@ChinnuWoW Жыл бұрын
There are lots of other space youtubers who admit we don't know.
@JamieDelour
@JamieDelour Жыл бұрын
@Noelle Leger I'm thinking of the rocket example used in Veritasium's "gravity is not a force" video. i.e When standing on earth, we are being pushed up. To rephrase my question a little, how can the earth be accelerating in all directions at once? or I have misunderstood the theory. Thanks
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
​@Noelle Leger The ultimate mathematical unification (AND UNDERSTANDING) of physics/physical experience combines, BALANCES, AND includes opposites. The BALANCE of what is gravity WITH what is inertia/INERTIAL RESISTANCE requires and involves TIME AND time dilation ON/IN BALANCE, AS gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); AS this CLEARLY explains the fourth dimension; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. INSTANTaneity is fundamental to what are TIME AND time dilation ON/IN BALANCE. Accordingly, ON BALANCE, INSTANTaneity is fundamental to what is the FULL and proper understanding of physics/physical experience; AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. What is GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. What is E=MC is taken directly from F=ma, AS the rotation of WHAT IS THE MOON matches the revolution; AS the stars AND PLANETS are POINTS in the night sky. Great. INDEED, c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. “Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED electromagnetic/gravitational force/ENERGY, AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE). A given PLANET (including what is THE EARTH) sweeps out equal area in equal TIME. Great. What is E=MC is taken directly from F=ma. Consider TIME AND time dilation ON/IN BALANCE. INDEED, consider what is THE EYE ON BALANCE !!! Notice WHAT IS the fully illuminated AND setting/WHITE MOON ON BALANCE !!! NOW, consider what is the TRANSLUCENT AND BLUE sky ON BALANCE !!! So, consider what is the orange AND setting Sun ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/as) what is GRAVITATIONAL force/ENERGY, AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. Consider TIME AND time dilation ON/IN BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE). GREAT !!!! BALANCE AND completeness go hand in hand. Carefully consider, ON BALANCE, why and how it is that there is something instead of nothing !!!! By Frank Martin DiMeglio
@daves2520
@daves2520 Жыл бұрын
I appreciate his effort to be impartial and objective in his explanations.
@paullukens7154
@paullukens7154 Жыл бұрын
I am a retired Biology Teacher. Believe it or not, I have watched DOZENS of KZfaq physics videos... just trying to understand one tiny little bit of what 'gravity' is. Dr. Don... after watching your video I GET IT NOW!!! Woohoo. Great explanation. It only took me 42 YEARS (!) of trying, to finally understand. A million thanks!!! (I hope you don't let rude viewers change your teaching style. It is OH SO EASY to criticize using this 'Comments' format. Some people watch, just looking to cause grief.)
@voges1001
@voges1001 5 ай бұрын
So what is it?
@ub2bn
@ub2bn 4 ай бұрын
Yes, what is Gravity, other than whatever one imagines it to be?
@deandownsouth
@deandownsouth 2 ай бұрын
Really??
@alexcadle1369
@alexcadle1369 16 күн бұрын
😂A Biology Teacher and it only took you 42 years eh? I guess, I have a very long journey ahead, maybe not.
@garyc1384
@garyc1384 Жыл бұрын
Thank you Don, for the time , effort and dedication to the topic you provide us all with in these vids.
@AliensKillDevils.
@AliensKillDevils. Жыл бұрын
Gravity is caused by nuclear. If Earth has no nuclear, Earth will have nearly no gravity. Greenhouse gas will flow further away from the Earth's surface. Earth will be cooler and more comfortable to live. In five months, all Nuclear Power Plants worldwide will be broken. Please work on clean oil gas coal mining. In five months, price of electricity, oil, gas, coal, minerals will jump again. Lots of power outages. Aliens (Gods who created and manage this Universe and Earth) will remove nuclear fuel completely. Aliens (Gods who created and manage this Universe and Earth) bless, to clean up the bad people. Please no nuclear. Global warming is because human-made nuclear explosions have resonated and destroyed the Sun since 1945. Gods (aliens who created and manage this Universe) have been repairing the Sun since 2002-07-13. Gods have been pulling Earth away from Sun since 2017-06-03. Since 2019-03-23, Gods have been taking nuclear particles away from Earth to stop nuclear wipeout and nuclear disasters. Earth will be cooler to the 1973 level. Gravity is caused by nuclear. If Earth has no nuclear, Earth will have nearly no gravity. Greenhouse gas will flow further away from the Earth's surface. Earth will be cooler and more comfortable to live. Global oil and gas prices and electricity prices jack up because nuclear power plants worldwide are nearly all broken and unable to generate electricity. The Gods who created and manage this Universe (aliens) made oil, gas, coal and minerals. Please use these energies. Gods recycle the landfills, trash, plastics, waste, sewage, and the dead body of water creatures under the crust to make oil, gas, and minerals. Gods use flying saucers to compress dead trees and plants under the soil to make coals. So Gods can bring better asteroid soil and better seeds to Earth to upgrade Earth. Most asteroids are worth hundreds of millions or billions or trillions. God bless, I do oil, gas, coal and Solar resonator. Please do not use hydropower dams. They caused environmental damages and fishes extinct; also increased parasites, more angry cows, animals and humans, and more diseases; also increased landslides, risk of dam collapse and other disasters. Gods are removing the dams. Gods have arrived. Lots of aliens from other Planets and other Universes have arrived and landed on Earth. They are judging and taking away bad people for reeducation. If you want to talk to God and ask God to help, you must be vegan. Killing and eating meat, egg, honey and use animal and insects product is very bad. It is disrespectful of life. It is the worst karma in the Universe. Gods do not like it. You ask God to read Akashic records to solve your problems and your ancestors’ problems one by one. Pyramids are good. Detoxification. In my dream, my whole family pooped and pooped a lot. You can print out the pyramid photos. Think about it. Put the photos in bedroom, toilet, kitchen, work place. With clean pyramid photos, you can see better too. guestbook.lingpai.org/d/30-move-the-himalayas-to-the-pacific-ocean-to-build-et-base-island guestbook.lingpai.org/d/93-the-project-of-changing-heaven-and-earth
@stephenburrow9946
@stephenburrow9946 Жыл бұрын
Another outstanding video. Great presentation of why this issue is more complicated than it may seem at first.
@kx4532
@kx4532 Жыл бұрын
Excellent, showing us stuff we wouldn't even know to look for!
@faisafarrah9043
@faisafarrah9043 Жыл бұрын
​@@kx4532 I doubt physics exists.
@kx4532
@kx4532 Жыл бұрын
@@faisafarrah9043 wut
@kx4532
@kx4532 Жыл бұрын
kzfaq.info/get/bejne/jJ-oiLSI1JrafmQ.html She types on a smartphone with its silicon field effect transistors with their gates constantly forcing the energy bands in the PN junctions to reduce to the point where electrons tunnel through the gap allowing current to flow and then the reverse of this in multiple billions on instances. All calculated out ahead from the results of labs all over the world.
@kx4532
@kx4532 Жыл бұрын
kzfaq.info/get/bejne/nJ-qaZp11M6wmac.html The horizontal axis is the distance from the gate oxide. It vertical axis on the graph is energy in Volts V or more often Electron Volts eV
@gregturpin8931
@gregturpin8931 6 ай бұрын
I only discovered Dr. Lincoln about six months ago. Still working my way through his amazing library. Please keep up the great work, sir! You are greatly appreciated!
@frankmalenfant2828
@frankmalenfant2828 Жыл бұрын
I had that question in mind for a few months now. Thank you for that enlightening explanation.
@anthonyhargis6855
@anthonyhargis6855 Жыл бұрын
Always educational and hard to turn away from. Outstanding Professor!
@faisafarrah9043
@faisafarrah9043 Жыл бұрын
Do should stop making people doubt physics
@marioluna2957
@marioluna2957 Жыл бұрын
Santa Lincoln rocks👍
@anthonyhargis6855
@anthonyhargis6855 Жыл бұрын
@Noelle Leger You hit the wrong reply button.
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
@@anthonyhargis6855 WHAT IS E=MC2 IS SPACE AS what is gravity (ON/IN BALANCE). Consider TIME AND time dilation ON BALANCE. c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. In other words, WHAT IS E=MC2 IS SPACE AS what is gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!!! Indeed, consider what is THE EARTH/ground ON BALANCE !! The stars AND PLANETS are POINTS in the night sky. The rotation of WHAT IS THE MOON matches the revolution, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!!! Indeed, consider WHAT IS THE EYE ON BALANCE. Now, consider, ON BALANCE, what is the fully illuminated (AND setting/WHITE) MOON !!! So, ON BALANCE, consider what is the orange (AND setting) Sun !!! ON BALANCE, it is the SAME SIZE as WHAT IS THE EYE !!! CLEARLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); as the stars AND PLANETS are POINTS in the night sky. Consider TIME AND time dilation ON BALANCE. Indeed, WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. Now, notice what is the TRANSLUCENT AND BLUE sky ON BALANCE; AS what is THE EARTH is ALSO BLUE. GREAT !!! So, consider, ON BALANCE, why and how it is that there is something instead of nothing. (BALANCE AND completeness go hand in hand.) It ALL does CLEARLY make perfect sense ON BALANCE !!!! A given PLANET (including WHAT IS THE EARTH) sweeps out equal area in equal TIME, AS ELECTROMAGNETISM/energy is CLEARLY (AND NECESSARILY) proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!!! GREAT !!! By Frank Martin DiMeglio Consider what is THE SUN. Consider what is THE EYE. The stars AND PLANETS are POINTS in the night sky. This CLEARLY explains and proves what is the fourth dimension. By Frank Martin DiMeglio
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
​@@marioluna2957 WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!! BALANCE AND completeness go hand in hand. GREAT !!! WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. (WHAT IS E=MC2 IS dimensionally consistent.) Consider what is the man (AND THE EYE ON BALANCE) who IS standing on WHAT IS THE EARTH/ground, AS touch AND feeling BLEND; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!! BALANCE AND completeness go hand in hand. WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent, AS “mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED electromagnetic/gravitational force/ENERGY; AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE). INDEED, GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!! The stars AND PLANETS are POINTS in the night sky. WHAT IS E=MC2 IS dimensionally consistent !!! Accordingly, ON BALANCE, THE PLANETS (including what is THE EARTH) sweep out equal areas in equal times. Consider TIME (AND time dilation) ON BALANCE. WHAT IS E=MC2 is taken directly from F=ma, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent !!! CLEARLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); as the stars AND PLANETS are POINTS in the night sky. Consider TIME (AND time dilation) ON BALANCE. INDEED, TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!! GREAT !!! ACCORDINGLY, ON BALANCE, the rotation of WHAT IS THE MOON matches the revolution. GREAT !!! WHAT IS E=MC2 IS dimensionally consistent. GREAT !!! It is a very great truth that the SELF represents, FORMS, and experiences a COMPREHENSIVE approximation of experience in general by combining conscious and unconscious experience. INDEED, the INTEGRATED EXTENSIVENESS of THOUGHT AND description is improved in the truly superior mind. BALANCE AND completeness go hand in hand. By Frank Martin DiMeglio
@TheRealLughnatic
@TheRealLughnatic Жыл бұрын
The sight of those KZfaq comments trying to tell a literal physicist what gravity is...good lord. Edit: This wasn't supposed to blow up...
@MrNicePotato
@MrNicePotato Жыл бұрын
I can imagine these know-it-all nerds who watches a lot of popular science videos only remembering catchy lines about gravity, without actually having gone through the ins and outs of relativity. But on the other hand, I also appreciate the willingness to challenge and argue, not blindly believing someone just because he is a trusty looking scientist, as long as its healthy and constructive of course.
@AverageAlien
@AverageAlien Жыл бұрын
Appeal to authority
@AverageAlien
@AverageAlien Жыл бұрын
Anyone can tell anyone anything, funnily enough
@0-by-1_Publishing_LLC
@0-by-1_Publishing_LLC Жыл бұрын
*"The sight of those KZfaq comments trying to tell a literal physicist what gravity is...good lord."* ... We have already entered the age where the collective input from a broad range of humans will produce more answers than the intellectually gifted individuals operating in their specialized fields. A famous artist can paint wonderful works of art in his or her particular style, but an A.I. can create new art styles by pulling imagery from every known work of art that's available. You will soon start seeing "random people" answering hard questions that have stumped the most popular and highly regarded scientists, physicists, philosophers, and mathematicians of their times.
@Narokkurai
@Narokkurai Жыл бұрын
@@AverageAlien Appealing to authority is only a fallacy when that authority isn't relevant to the topic at hand.
@RichardWilkin
@RichardWilkin Жыл бұрын
Just today I was thinking about the subjectivity of information. For example, if I was in an audience listening to someone speaking Cantonese, to me it would be data (I’m getting audible signals, but they don’t mean much to me), but to someone else who speaks it, it would be information. That could be another example of how the conceptual framework used affects the communication requirements.
@XannyMaGroin
@XannyMaGroin 9 ай бұрын
Wow how intriguing! Almost sounds like a 4 dimensional concept? Could you give an example of this outside of your example of hearing sounds without understanding what the sounds mean as with your language example?
@horse._
@horse._ 11 ай бұрын
I am in my sophomore year of highschool and Im thinking i want to be an astrophysicist. Even for me, someone with little physics know-how, this was extremely understandable. I applaud you for your ability to explain so well in such a simple manner.
@chadbailey3623
@chadbailey3623 Жыл бұрын
I love how you describe scientific debates. You are an A+ educator!!!
@AliensKillDevils.
@AliensKillDevils. Жыл бұрын
Gravity is caused by nuclear. If Earth has no nuclear, Earth will have nearly no gravity. Greenhouse gas will flow further away from the Earth's surface. Earth will be cooler and more comfortable to live. In five months, all Nuclear Power Plants worldwide will be broken. Please work on clean oil gas coal mining. In five months, price of electricity, oil, gas, coal, minerals will jump again. Lots of power outages. Aliens (Gods who created and manage this Universe and Earth) will remove nuclear fuel completely. Aliens (Gods who created and manage this Universe and Earth) bless, to clean up the bad people. Please no nuclear. Global warming is because human-made nuclear explosions have resonated and destroyed the Sun since 1945. Gods (aliens who created and manage this Universe) have been repairing the Sun since 2002-07-13. Gods have been pulling Earth away from Sun since 2017-06-03. Since 2019-03-23, Gods have been taking nuclear particles away from Earth to stop nuclear wipeout and nuclear disasters. Earth will be cooler to the 1973 level. Gravity is caused by nuclear. If Earth has no nuclear, Earth will have nearly no gravity. Greenhouse gas will flow further away from the Earth's surface. Earth will be cooler and more comfortable to live. Global oil and gas prices and electricity prices jack up because nuclear power plants worldwide are nearly all broken and unable to generate electricity. The Gods who created and manage this Universe (aliens) made oil, gas, coal and minerals. Please use these energies. Gods recycle the landfills, trash, plastics, waste, sewage, and the dead body of water creatures under the crust to make oil, gas, and minerals. Gods use flying saucers to compress dead trees and plants under the soil to make coals. So Gods can bring better asteroid soil and better seeds to Earth to upgrade Earth. Most asteroids are worth hundreds of millions or billions or trillions. God bless, I do oil, gas, coal and Solar resonator. Please do not use hydropower dams. They caused environmental damages and fishes extinct; also increased parasites, more angry cows, animals and humans, and more diseases; also increased landslides, risk of dam collapse and other disasters. Gods are removing the dams. Gods have arrived. Lots of aliens from other Planets and other Universes have arrived and landed on Earth. They are judging and taking away bad people for reeducation. If you want to talk to God and ask God to help, you must be vegan. Killing and eating meat, egg, honey and use animal and insects product is very bad. It is disrespectful of life. It is the worst karma in the Universe. Gods do not like it. You ask God to read Akashic records to solve your problems and your ancestors’ problems one by one. Pyramids are good. Detoxification. In my dream, my whole family pooped and pooped a lot. You can print out the pyramid photos. Think about it. Put the photos in bedroom, toilet, kitchen, work place. With clean pyramid photos, you can see better too. guestbook.lingpai.org/d/30-move-the-himalayas-to-the-pacific-ocean-to-build-et-base-island guestbook.lingpai.org/d/93-the-project-of-changing-heaven-and-earth
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
@Noelle Leger WHAT IS E=MC2 IS SPACE AS what is gravity (ON/IN BALANCE). Consider TIME AND time dilation ON BALANCE. c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. In other words, WHAT IS E=MC2 IS SPACE AS what is gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!!! Indeed, consider what is THE EARTH/ground ON BALANCE !! The stars AND PLANETS are POINTS in the night sky. The rotation of WHAT IS THE MOON matches the revolution, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!!! Indeed, consider WHAT IS THE EYE ON BALANCE. Now, consider, ON BALANCE, what is the fully illuminated (AND setting/WHITE) MOON !!! So, ON BALANCE, consider what is the orange (AND setting) Sun !!! ON BALANCE, it is the SAME SIZE as WHAT IS THE EYE !!! CLEARLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); as the stars AND PLANETS are POINTS in the night sky. Consider TIME AND time dilation ON BALANCE. Indeed, WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. Now, notice what is the TRANSLUCENT AND BLUE sky ON BALANCE; AS what is THE EARTH is ALSO BLUE. GREAT !!! So, consider, ON BALANCE, why and how it is that there is something instead of nothing. (BALANCE AND completeness go hand in hand.) It ALL does CLEARLY make perfect sense ON BALANCE !!!! A given PLANET (including WHAT IS THE EARTH) sweeps out equal area in equal TIME, AS ELECTROMAGNETISM/energy is CLEARLY (AND NECESSARILY) proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!!! GREAT !!! By Frank Martin DiMeglio Consider what is THE SUN. Consider what is THE EYE. The stars AND PLANETS are POINTS in the night sky. This CLEARLY explains and proves what is the fourth dimension. By Frank Martin DiMeglio
@VardaMusic
@VardaMusic Жыл бұрын
It’s wonderful how much we have yet to understand- and the way you highlighted that here helps the creative thoughts flow so that we can reach those higher levels of understanding with less road blocks caused by closing our minds to even what we can’t conceive of yet. So many things in astrophysics in particular hinge on theories, not definite fact, and it seems to me some videos I’ve watched forget to remind the watcher of that. Thank you for the thought you put into this!
@Soupy_loopy
@Soupy_loopy Жыл бұрын
This guy really knows how to address internet trolls. Maybe one of the best.
@voltydequa845
@voltydequa845 Жыл бұрын
«This guy really knows how to address internet trolls. Maybe one of the best.» ---- Smart and wise gentleman. But here he is addressing parrots - that trolls are yet another phenomena that no other than ban can address.
@Raziel_SSJ
@Raziel_SSJ Жыл бұрын
Thanks for this video. Being careful when asserting something and not beeing too sure of us is often overlooked.
@Shadow_B4nned
@Shadow_B4nned Жыл бұрын
Just made a gravity bong for science. There's definitely some mysterious force in action. Will report back after I have isolated source.
@NondescriptMammal
@NondescriptMammal Жыл бұрын
"This view is made possible for us by the teaching of experience as to the existence of a field of force, namely, the gravitational field, which possesses the remarkable property of imparting the same acceleration to all bodies." "Thus, according to the general theory of relativity, gravitation occupies an exceptional position with regard to other forces, ..." -- Albert Einstein, The Foundation of the General Theory of Relativity, 1916
@JoeDeglman
@JoeDeglman Жыл бұрын
General relativity is a failed model, by experiment.
@masonduarte8001
@masonduarte8001 10 ай бұрын
This is a wonderful video. The way you express these ideas in a simple way is amazing.
@amanvalodia3669
@amanvalodia3669 Жыл бұрын
This question was troubling me for a long time. this video helped me a lot. Thank you so much Dr.Lincoln
@VonJay
@VonJay 4 ай бұрын
except that based on Newton's equations, the downward force of gravity and the upward acceleration of the earth would cause both forces to cancel out. In Einstein's field equations, gravity isn't a force and only the earth is accelerating upward, and the acceleration is 9.8 m/s^2. The thing that proves Einstein's posit that gravity isn't a force is the use of an accelerometer on earth's surface. It reads out that the earth is accelerating. But if Newton were right then the accelerometer wouldn't read out anything. It would be zero. So gravity isn't a force.
@Condor512
@Condor512 Жыл бұрын
Dr. Don, Thanks for another enlightening video.😁
@AliensKillDevils.
@AliensKillDevils. Жыл бұрын
Gravity is caused by nuclear. If Earth has no nuclear, Earth will have nearly no gravity. Greenhouse gas will flow further away from the Earth's surface. Earth will be cooler and more comfortable to live. In five months, all Nuclear Power Plants worldwide will be broken. Please work on clean oil gas coal mining. In five months, price of electricity, oil, gas, coal, minerals will jump again. Lots of power outages. Aliens (Gods who created and manage this Universe and Earth) will remove nuclear fuel completely. Aliens (Gods who created and manage this Universe and Earth) bless, to clean up the bad people. Please no nuclear. Global warming is because human-made nuclear explosions have resonated and destroyed the Sun since 1945. Gods (aliens who created and manage this Universe) have been repairing the Sun since 2002-07-13. Gods have been pulling Earth away from Sun since 2017-06-03. Since 2019-03-23, Gods have been taking nuclear particles away from Earth to stop nuclear wipeout and nuclear disasters. Earth will be cooler to the 1973 level. Gravity is caused by nuclear. If Earth has no nuclear, Earth will have nearly no gravity. Greenhouse gas will flow further away from the Earth's surface. Earth will be cooler and more comfortable to live. Global oil and gas prices and electricity prices jack up because nuclear power plants worldwide are nearly all broken and unable to generate electricity. The Gods who created and manage this Universe (aliens) made oil, gas, coal and minerals. Please use these energies. Gods recycle the landfills, trash, plastics, waste, sewage, and the dead body of water creatures under the crust to make oil, gas, and minerals. Gods use flying saucers to compress dead trees and plants under the soil to make coals. So Gods can bring better asteroid soil and better seeds to Earth to upgrade Earth. Most asteroids are worth hundreds of millions or billions or trillions. God bless, I do oil, gas, coal and Solar resonator. Please do not use hydropower dams. They caused environmental damages and fishes extinct; also increased parasites, more angry cows, animals and humans, and more diseases; also increased landslides, risk of dam collapse and other disasters. Gods are removing the dams. Gods have arrived. Lots of aliens from other Planets and other Universes have arrived and landed on Earth. They are judging and taking away bad people for reeducation. If you want to talk to God and ask God to help, you must be vegan. Killing and eating meat, egg, honey and use animal and insects product is very bad. It is disrespectful of life. It is the worst karma in the Universe. Gods do not like it. You ask God to read Akashic records to solve your problems and your ancestors’ problems one by one. Pyramids are good. Detoxification. In my dream, my whole family pooped and pooped a lot. You can print out the pyramid photos. Think about it. Put the photos in bedroom, toilet, kitchen, work place. With clean pyramid photos, you can see better too. guestbook.lingpai.org/d/30-move-the-himalayas-to-the-pacific-ocean-to-build-et-base-island guestbook.lingpai.org/d/93-the-project-of-changing-heaven-and-earth
@sapelesteve
@sapelesteve Жыл бұрын
All that I can say is "May The Force Be With You Dr. Don"! 🤔🤔👍👍
@timjohnson979
@timjohnson979 Жыл бұрын
Or, may the curvature of the space you're in always be in your favor.😃
@drdon5205
@drdon5205 Жыл бұрын
We definitely should have released this video on May 4th.
@thomasherrin6798
@thomasherrin6798 Жыл бұрын
That doesn't hold gravity!?!
@ejikeawazie1469
@ejikeawazie1469 Ай бұрын
I ❤ the teacher who calmly teaches without yelling at his audience, like Neil... 😂😂😂
@toughenupfluffy7294
@toughenupfluffy7294 Жыл бұрын
3:37. Of all the videos and textbooks I've ever seen, this is the first to portray the bending of spacetime in 3 dimensions. Well done!
@hanszlh6522
@hanszlh6522 Жыл бұрын
as a lay person , but bloody old - 80+ ,,, i strut on wondering vhot my fellow countryman Albert E. had in mind for WHAT would CAUSE the "Space-Thyme" distortions - Other than stating "Mass" .... .. in my book a Cause might very reasonably 'synonymizised' as a Force .... - In short : " No Force -No Cause " ( Just my simplistic but 'quite human' logic ) And as to my understanding , there ain't not all that much around ( us .. ) that we wouldn't believe to 'depend' on NO-CAUSE - other than 'our' ( and Einstein's -? ) idea of "God" , and his - or Stephen H.'s "singularity ( .. ies ) - ? So , i don't see how Mass - most bloody 'obviously' bends Space-Time evver so 'effor(ce)tly' ... ??? enlighten-me, por favor , please , bitte !!!
@VonJay
@VonJay 4 ай бұрын
But spacetime curvature equation was made with the use of intrinsic curvature and not extrinsic, so the 3D diagram is wrong.
@anthonystevens6705
@anthonystevens6705 Жыл бұрын
Thank you, Dr. Don! Wonderful video
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
​@Noelle Leger WHAT IS E=MC2 is CLEARLY consistent with the fourth dimension in/of/AS SPACE, AS the stars AND PLANETS are POINTS in the night sky; AS the rotation of WHAT IS THE MOON matches the revolution; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity ON/IN BALANCE; AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !! INDEED, consider WHAT IS THE EYE ON BALANCE; AS c squared CLEARLY (AND NECESSARILY) represents a dimension of SPACE ON BALANCE !! Consider TIME AND time dilation ON BALANCE !!!! Gravity AND ELECTROMAGNETISM energy are linked AND BALANCED opposites (ON BALANCE), AS the stars AND PLANETS are POINTS in the night sky. TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. I have CLEARLY proven and explained what is the fourth dimension. Magnificent. By Frank Martin DiMeglio
@shannontaylor1849
@shannontaylor1849 Жыл бұрын
I was expecting to be mildly disappointed. After several viewings, I am mildly disappointed in my expectations. Excellent explanation of difficult concepts. Thank you for giving the effort required to share such information about the nature of our reality.
@VonJay
@VonJay 4 ай бұрын
I mean he got it wrong. If Newton was right then both the earth's acceleration upward and the gravitational force downward would cancel each other out at the earth's surface. But Einstein's field equations posit that gravity isn't a force, and it is the earth that is accelerating. The very thing that proves this is the use of an accelerometer on the earth's surface. It has a positive or non-zero read out of acceleration. When if Newton was right, it would be 0. So gravity isn't a force.
@edd.
@edd. Жыл бұрын
I hope that you do a deep dive into those topics. I think we'd all love to see it.
@therealebolaboy
@therealebolaboy Жыл бұрын
Thank you very much for making these videos!
@WelshyPilotGuy
@WelshyPilotGuy Жыл бұрын
Love these videos, really gets you thinking. It’s pretty uplifting. Reminds me of when I was a kid walking out of a science class feeling like the world has changed a little because of my new knowledge. Such a cool feeling. Thank you
@idontwantahandlethough
@idontwantahandlethough Жыл бұрын
love that feeling; feeling like the world is somehow slightly more vast and wonderful than it was the hour before :)
@dwaynezilla
@dwaynezilla Жыл бұрын
Oo yes, a deep dive into entropic gravity would be fabulous. The brutal weirdness of it makes it seem promising!
@nuckyducky
@nuckyducky Ай бұрын
I am in love with entropic gravity. I can't wait to learn more about the topic. Thank you for this overview!
@AnexoRialto
@AnexoRialto Жыл бұрын
Thanks so much for the clear and concise explanation.
@Mr.Not_Sure
@Mr.Not_Sure Жыл бұрын
I like it when real physicists aren't so zealous as physics geeks.
@easternhills1329
@easternhills1329 Жыл бұрын
Dunning-Kruger effect doing its thing.
@Mr.Not_Sure
@Mr.Not_Sure Жыл бұрын
@Noelle Leger Are you idiot or just pretend?
@voltydequa845
@voltydequa845 Жыл бұрын
@@easternhills1329 «Dunning-Kruger effect doing its thing.» ---- There's not such an effect. It was dismantled, soon after announced, by other researchers, as artefact (bias in premises, measure, repeatability, etc). Btw I knew that it was a bluff, before having read that they already demolished it, since the measure cannot be but subjective. Anyway, from what I remember, officially there were two problems - 1) absence of repeating 2) totally random answers gave the same results as obtained from their tests.
@betaneptune
@betaneptune Жыл бұрын
@noelleleger232 Einstein said not to take the geometric interpretation too literally. So he thought it was a force. Besides, how do you conserve energy if it's not a force?
@betaneptune
@betaneptune Жыл бұрын
@noelleleger232 I've seen the video. I'm not convinced. And why is it popular now to have rockets accelerate the elevator car? The rocket will reduce the mass of the car by hurling propellant away. Why not just use the traditional rope pulling the thing? I have also seen posts from a reliable person about how Einstein himself said not to take the geometrical view too seriously. This same person explained that you could view electromagnetism geometrically, except that you have different geometry based on different charges. With gravity, everything is affected, so you can have a single geometry describe everything. Also, how would you conserve energy that way, e.g.? And sorry, I'm not interested in any conspiracy theories about 9/11. I suppose you're next going to claim we didn't go to the moon. Or that JFK Jr. is coming back as a Republican.
@yeeyourlasthaw2803
@yeeyourlasthaw2803 Жыл бұрын
I'm not calling myself a scientist until I get a degree in a science field. For now, I am an admirer of scientists and I appreciate the knowledge all of them bring.
@nickjanke227
@nickjanke227 Жыл бұрын
🎉
@e.mcguire1538
@e.mcguire1538 Жыл бұрын
Another fine job, Dr. Lincoln. Thanks.
@bryandraughn9830
@bryandraughn9830 Жыл бұрын
I love examples of gravitational lensing because they seem to support relativity in a very obvious way, but the idea that some mass could somehow "pull" on empty space still makes me wonder "how?". Great video!
@terryjwood
@terryjwood Жыл бұрын
Thanks for clarifying this! I've wondered about this question for some time.
@edwardofgreene
@edwardofgreene Жыл бұрын
Actually he didn't clarify it, and that was the point. He explained that we can't definitively clarify it at this time. And it might never have a clarification from all points of view even when we do understand it better. (Sort of like the long standing debate over whether light is a particle or a wave. In the end we definitively decided.... both? Depends how you look at it. It definitely has properties of both!)
@terryjwood
@terryjwood Жыл бұрын
@@edwardofgreene He clarified why sometimes we say gravity is a force and sometimes we don't. It all depends upon which method, Newton's or Einstein's, we're using.
@kylelochlann5053
@kylelochlann5053 Жыл бұрын
@@terryjwood but he's wrong - physics isn't about our feelings, it's about measurement. All measurements indicate and require that gravity cannot be a force.
@terryjwood
@terryjwood Жыл бұрын
@@kylelochlann5053 Have you told him that?
@kylelochlann5053
@kylelochlann5053 Жыл бұрын
@@terryjwood Every single time.
@immanuelburgstaller5944
@immanuelburgstaller5944 Жыл бұрын
I like the humbleness of the guy. Throwing your degree doesn't mean you're right. 👏👏👏
@faisafarrah9043
@faisafarrah9043 Жыл бұрын
Humbleness? 🤔😖 A humble person wouldn't conflate a simple physics issue by bringing in misconceptions.
@MrLcowles
@MrLcowles Жыл бұрын
@@faisafarrah9043 BEGONE TROLL!!!
@jeffbeck8993
@jeffbeck8993 Жыл бұрын
Is this the garden variety right wing reaction to educated people? The sight of advance degrees hanging on this guy's wall causes insecure, less educated people to reflect on their shortcomings in life. Instead of doing something about it, they s**t on the "smart guy". Says a lot about them, and they don't even realize it.
@VonJay
@VonJay 4 ай бұрын
@@faisafarrah9043 Yeah he definitely conflated quantum gravity with Einstein Field equations. I'm not saying I'm smarter than him, but the reason why people know that gravity isn't a force is because if Newton was right then an accelerometer wouldn't read out non-zero acceleration. But if you did use one it would show that the earth is accelerating and that gravity isn't a force.
@havehalkow
@havehalkow Жыл бұрын
So good you mentioned the Serway's physics book. After reading a few pages, it seems a very well put book.
@andrewpaulhart
@andrewpaulhart Жыл бұрын
Now skip to the end and see how it ends
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
​@@andrewpaulhart WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!! BALANCE AND completeness go hand in hand. GREAT !!! WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. (WHAT IS E=MC2 IS dimensionally consistent.) Consider what is the man (AND THE EYE ON BALANCE) who IS standing on WHAT IS THE EARTH/ground, AS touch AND feeling BLEND; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!! BALANCE AND completeness go hand in hand. WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent, AS “mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED electromagnetic/gravitational force/ENERGY; AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE). INDEED, GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!! The stars AND PLANETS are POINTS in the night sky. WHAT IS E=MC2 IS dimensionally consistent !!! Accordingly, ON BALANCE, THE PLANETS (including what is THE EARTH) sweep out equal areas in equal times. Consider TIME (AND time dilation) ON BALANCE. WHAT IS E=MC2 is taken directly from F=ma, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent !!! CLEARLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); as the stars AND PLANETS are POINTS in the night sky. Consider TIME (AND time dilation) ON BALANCE. INDEED, TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!! GREAT !!! ACCORDINGLY, ON BALANCE, the rotation of WHAT IS THE MOON matches the revolution. GREAT !!! WHAT IS E=MC2 IS dimensionally consistent. GREAT !!! It is a very great truth that the SELF represents, FORMS, and experiences a COMPREHENSIVE approximation of experience in general by combining conscious and unconscious experience. INDEED, the INTEGRATED EXTENSIVENESS of THOUGHT AND description is improved in the truly superior mind. BALANCE AND completeness go hand in hand. By Frank Martin DiMeglio
@eran3851
@eran3851 Жыл бұрын
I've seen another video trying to explain why gravity is not a force, and I could not understand it enough to remember. I understood Your explanation instantly. Thank You sir.
@VonJay
@VonJay 4 ай бұрын
I don't see how he made it any clearer lol
@Earwaxfire909
@Earwaxfire909 Жыл бұрын
Very well done. I'd like to learn more about entropic models of gravity when you have the space-time.
@pcbacklash_3261
@pcbacklash_3261 23 күн бұрын
This website is quite useful to a layman like me. I've read a handful of books on subjects like cosmology and quantum physics, but it's difficult to find time to keep up to date on all the crazy theories out there! These videos may not make me an expert, but they at least make the topics comprehensible! Good job, Dr. Lincoln!
@videoinformer
@videoinformer Жыл бұрын
The "tautology" part is in reference to the fact whether gravity is a "force" depends on the definition of "force" that is being used (among other things). The definition of "force" that requires particle mediation and also presumes gravity isn't mediated by particles, doesn't really explain what gravity is because it doesn't explain what "space-time" even is, i.e., the thing that is "curved" and is thus perceived as "gravity". But, a an alternate definition of "force" that doesn't require particle mediation would include gravity as a "force". Thus, the tautology, opposite tautologies, depending on the definition of "force".
@ChinnuWoW
@ChinnuWoW Жыл бұрын
I think it definitely must be a force because space can’t distort itself. Distorting space(or anything) requires work. The gravitational effect is not the force itself but it is indirectly caused by it.
@kylelochlann5053
@kylelochlann5053 Жыл бұрын
Yes, spacetime distorts itself, a non-linear aspect of the theory. In quantum parlance, the gravitational field couples to itself.
@thomasherrin6798
@thomasherrin6798 Жыл бұрын
Newton is majorly right and Einstein and his Professor have taken us up a bit of a cul-de-sac, there is universal time, there is also specific object time!?!
@beders
@beders Жыл бұрын
​@@thomasherrin6798 Einstein's predictions have been verified over and over and over again. Your GPS wouldn't work if Einstein was wrong. Note that Dr. Lincoln said: Einstein's theory is incomplete. That doesn't mean you can't make real-world calculations
@tr48092
@tr48092 Жыл бұрын
I would love to see a video from you on entropic gravity
@timjohnson979
@timjohnson979 Жыл бұрын
That would be great. I don't recall seeing much on that at all.
@Syncrotron9001
@Syncrotron9001 Жыл бұрын
Gravity = Lag. More particles? More lag, more gravity.
@quandaledingle2107
@quandaledingle2107 Жыл бұрын
It's way over my head, but I think Erik Verlinde did a lecture about it recently that's available on youtube. Erik Verlinde "Emergence of Gravity from Quantum Information: a Progress Report" from another comment
@Sun-Ra9
@Sun-Ra9 10 ай бұрын
Physics is soooooo delightful!! Thanks for the explanation. There is always a lot more to learn.
@corafishy
@corafishy Жыл бұрын
thank you :))))))))))))) i love your transparent explanations. subscribed immediately.
@JorgenHenningsen
@JorgenHenningsen Жыл бұрын
Hi Don. As I understand it there are a few theoretical scientist working on thoughts about the link between entanglement and gravity. I think it will eventually lead to testable predictions. Have you got some thoughts in that direction?
@ExecutiveChefLance
@ExecutiveChefLance Жыл бұрын
Its not Testable. So a Wolfgang Pauli "Not Even Wrong" theory. The idea is that the Entanglement of Particles at beginning of the Universe has collected among Black Holes and this has some effect. Look up Leonard Susskind 2022 Oppenheimer Lecture on "Quantum Gravity". IMO this is the BEST theory out there. And Susskind straight up says his Math on Quantum Decoherence, the Momentum of Information spread within the Quantum Hologram equals Marco Gravity. Reality is a Hologram created by Quantum Particles and Waves that we cannot see or cohere. Therefore similar to a Technological Hologram the Quantum World creates the Reality we perceive similar to that. This happens because we cannot perceive the True Nature of Quantum Waves and what we call Wave Function Collapse occurs. When this occurs something starts it. Imagine poking a Hologram the Information of your Poke spreads throughout the Hologram. This is what happens in Reality. That information spread of Macro Things interacting with Quantum World. The momentum of that Interaction equals the Math of Newtonian Gravity. He has another lecture I have not watched yet. Funny enough its called Debunking Quantum Gravity. Which is interesting because its all the stuff I just said here. Guess he doesn't consider that "Quantum" but simply what Gravity is? I need to watch it for real. He even says it will be testable in Low Energy Labs soon. Guy is Next Level. We are Giants swatting a Dense Clot of Quantum Gnats swarming around us. With every Movement and Action rippling through these Swarms. You follow this Logic a Black Hole is simply when Energy gets to a Point when Waves cannot Exist any longer. So No Reality can Cohere.
@orthoplex64
@orthoplex64 Жыл бұрын
@/O/ Isn't everything constantly getting entangled with its immediate surroundings? There's no special thing required to make it happen.
@abelincoln8885
@abelincoln8885 Жыл бұрын
Newtonian physics is .... Universal Functions This means everything is a Function ... with purpose, form, properties, processes & design ... and can only be made by an intelligence. Universal Functions ... is the hypothesis for Sir Issac Newton's Watchmaker Analogy (Observation) over 300 years ago ... and ... an Machine Analogy used by Theists to explain "Intelligent Design." And the Function, Intelligence, Mind Categories ... as well as the origin of any THERMODYNAMIC System .... proves the Universe & Life ... are Functions, composed entirely of Functions and were made by an UNNATURAL Intelligence in a UNNATURAL surrounding System that is timeless & infinite. Quantum particles, fields & forces ... atoms, elements, compounds, molecules, ... chemical & nuclear reactions ... space, time, Laws of Nature, matter & energy ... are all Functions .... with purpose, form, properties, processes & design. There is ZERO evidence ... that nature natural processes can make the simplest physical function .... 13.7 or 4 billion years ago ... or ... today. We know for a fact ... that nature & natural processes ... can never make & operate the simplest physical function made by Man ( Intelligence) ... like the lever, wedge, spring, nut, bolt, nail, hammer, axe, shovel, wheel, .... cup, plate, knife & fork. Newtonian physics ... is Universal Functions. Science is a method (function) ... created by Man( function) ... to explain natural Phenomena(functions) ... rely completely of fixed Laws of nature, space, time, matter & energy which are all Functions. What the hell up and stop believing the fairy tales from religious zealots with PhDs about their Almighty Mother Nature & the Holy Natural Processes. A religion ... is simply a man made BELIEF system .... in someone or something ... responsible for the Universe, Life & existence/reality. Theists ... have a firm belief in someone (the gods of UNNATURAL intelligence). Atheists ... have a firm belief in something (Natural processes). And again ... Science is simply a method to EXPLAIN natural processes ( functions) based on fixed Laws of Nature(functions). Gravity .. if s function ... composed entirely of interacting functions ... that include at least mass, velocity & radius ... at the Cosmic or Macro level as Newton only 17th Century knowledge of the space, time, Laws of Nature, matter & energy of the Universe. And Newton did not realize everything, including Life, is a function composed entirely of INTERACTION functions.
@vast634
@vast634 Жыл бұрын
At very small distances, gravity might not act as "directed" (attraction vector) as we know it, and might act more randomly. That would be prediction.
@frankdimeglio8216
@frankdimeglio8216 Жыл бұрын
​@/O/ The ultimate mathematical unification (AND UNDERSTANDING) of physics/physical experience combines, BALANCES, AND includes opposites. The BALANCE of what is gravity WITH what is inertia/INERTIAL RESISTANCE requires and involves TIME AND time dilation ON/IN BALANCE, AS gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); AS this CLEARLY explains the fourth dimension; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. INSTANTaneity is fundamental to what are TIME AND time dilation ON/IN BALANCE. Accordingly, ON BALANCE, INSTANTaneity is fundamental to what is the FULL and proper understanding of physics/physical experience; AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. What is GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. What is E=MC is taken directly from F=ma, AS the rotation of WHAT IS THE MOON matches the revolution; AS the stars AND PLANETS are POINTS in the night sky. Great. INDEED, c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. “Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED electromagnetic/gravitational force/ENERGY, AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE). A given PLANET (including what is THE EARTH) sweeps out equal area in equal TIME. Great. What is E=MC is taken directly from F=ma. Consider TIME AND time dilation ON/IN BALANCE. INDEED, consider what is THE EYE ON BALANCE !!! Notice WHAT IS the fully illuminated AND setting/WHITE MOON ON BALANCE !!! NOW, consider what is the TRANSLUCENT AND BLUE sky ON BALANCE !!! So, consider what is the orange AND setting Sun ON BALANCE. ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE), AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Inertia/INERTIAL RESISTANCE is proportional to (or BALANCED with/as) what is GRAVITATIONAL force/ENERGY, AS the extension of what is SPACE is CLEARLY (AND NECESSARILY) electromagnetic/gravitational ON/IN BALANCE. Consider TIME AND time dilation ON/IN BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE). GREAT !!!! BALANCE AND completeness go hand in hand. Carefully consider, ON BALANCE, why and how it is that there is something instead of nothing !!!! By Frank Martin DiMeglio
@Barxxo
@Barxxo Жыл бұрын
Thank you, Sir. My point of view is: as long as Einstein isn't falsified gravity isn't a force.
@florianhofmann7553
@florianhofmann7553 Жыл бұрын
agreed
@DASLAKILL
@DASLAKILL Жыл бұрын
Einstein is falsified, he stole almost all of his work from Henri Poincare and gravity is the opposite of a force, its dielectric acceleration.
@jasonsebring3983
@jasonsebring3983 10 ай бұрын
You have been a positive "force" for me in learning. Thank you!
@bandotasif
@bandotasif 11 ай бұрын
Another great video by Dr. Lincoln!
@tomschmidt381
@tomschmidt381 Жыл бұрын
Great explanation of whether or not gravity is a force. I'm confident once the physics is understood it will turn out to be very counterintuitive, which is why it has taken so long to figure out.
@everythingisalllies2141
@everythingisalllies2141 Жыл бұрын
Its "counter intuitive because they are flat out wrong and their theories are nonsensical gibberish. Curved fabric of Spacetime" is 100% a mathematical construct, its abstract, so nothing in Physical reality is going to "follow a spacetime curvature". Gravity is a force, like magnetism. Simple as that and Einstein is full of crap. So is quantum nonsense.
@Nightscape_
@Nightscape_ Жыл бұрын
I want to hear more about entropic gravity. I don't think I have ever heard that brought up before, or at least don't remember any videos about it.
@grayaj23
@grayaj23 Жыл бұрын
It's way over my head, but I think Erik Verlinde did a lecture about it recently that's available on youtube. Erik Verlinde "Emergence of Gravity from Quantum Information: a Progress Report"
@quandaledingle2107
@quandaledingle2107 Жыл бұрын
@@grayaj23 thx
@lasagnahog7695
@lasagnahog7695 Жыл бұрын
Samesies. It's cool to see I wasn't the only one who had their ears perked up by that.
@abelincoln8885
@abelincoln8885 Жыл бұрын
Why? Gravity is simply a Function ... as is space, time, Laws of Nature, matter & energy. All Systems are Functions ... with purpose, form, properties, processes & design ... which are INFORMATION that every function possesses to exist & to function. And information ... is an abstract construct .. that can only come from the Mind of an Intelligence. There is zero evidence that nature & natural processes can make & operate the simplest physical function .... 13.7 or 4 billion years ago .... or today. We know for a fact that Nature ... can not make & operate the simplest physical Function made by Man (Intelligence) ... like a lever, wedge, spring, nut & bolt, hammer & nail, ... cup, plate, knife & fork. A quantum particle, field & force ... are the currently known ... simplest Functions in the Universe ... with purpose, form, processes, properties & design. The Universe is the only known ISOLATED Thermodynamic System(function). All thermodynamic Systems .... originate from the surrounding System ... which must provide the space, time, Laws, matter, energy and INTELLIGENCE ... to exist & to function. And the Surrounding System ... of the Universe with time & NATURAL laws ... must be UNNATURAL, timeless & infinite ... otherwise it will be a Natural System(function) that originates from a surrounding System with an Intelligence that made it. You want to learn more about entropic gravity ... to be in awe of God's brilliant Creation right? lol.
@S.L.S-407
@S.L.S-407 Жыл бұрын
I just find it interesting that with all the brains we have here on earth, no one has an undisputed definition of what gravity is. Thanks for the video.
@thomasherrin6798
@thomasherrin6798 Жыл бұрын
Of all the brains on Earth to date only three people mentioned in this video have majorly contributed to our understanding of it, in the 1700's and 1900's and, dare I add, without computers or AI!?!
@S.L.S-407
@S.L.S-407 Жыл бұрын
@@thomasherrin6798 - That's the problem. They have "contributed" to our understanding but no one can actually nail it down. I find that amazing.
@MsTyrie
@MsTyrie Жыл бұрын
Props for the evanescent tonality at the finish. Ahem, also the deep dive with a deferential approach. That's super deft.
@ericlani2622
@ericlani2622 Жыл бұрын
Nice nuanced take! One of my grad school professors said it’s even incorrect to describe the 4 forces of nature as forces. Opting rather to describe them as “interactions”
@kylelochlann5053
@kylelochlann5053 Жыл бұрын
He is correct. A fundamental interaction is an irreducible phenomenon that may or not produce a physical acceleration.
@ar4203
@ar4203 Жыл бұрын
​@@kylelochlann5053 see this is what i really dont get- the idea of a fundamental force makes sense as a force which is not reducable, but it doesnt make any sense to me to say that an "interaction" is irreducable - an interaction implies 2(or more things) which are interacting to produce an effect, like gravity or etc, & if thats the case calling it irreducable seems incoherent to me. Can anyone explain what im not getting here because this really bothers me.
@kylelochlann5053
@kylelochlann5053 Жыл бұрын
@@ar4203 Sure. Let's start with a reducible interaction, say the interaction between two surfaces sliding past each other (a.k.a. the force of kinetic friction). Is this friction force reducible to a more general interaction? Yes, friction is a function of the normal component of the contact force, f=μN. We can then ask if contact forces, the interaction between two surface more generally, is reducible to more general interactions. Yes, contact forces are dependent on the electromagnetic interaction. Here's where it becomes irreducible - we cannot express the interaction between charged particles in anything more general, or any other type of interaction. Basically that's the idea and we 4 types of interactions that cannot be explained in terms of anything else.
@chrimony
@chrimony Жыл бұрын
Now you're going to get a bunch of comments saying it's the bending of spacetime, and not just space. Clever content farming, Don!
@drdon5205
@drdon5205 Жыл бұрын
You know our viewership so well...
@private_citizen
@private_citizen Жыл бұрын
I will do you one better. Spacetime isn't real. Time isn't real. And space doesn't bend, move, or warp.
@mathsinmarathibyanillimaye3083
@mathsinmarathibyanillimaye3083 Жыл бұрын
I am a small time school teacher, this great GURU made me interested in life again. Thanks.
@quintinphillips
@quintinphillips Жыл бұрын
Thanks for clearing that up.
@krwada
@krwada Жыл бұрын
Another excellent video. I have always wondered about the apparent non-symmetry between Newton's force framework and that of general relativity. it appears as if there are lots of people, (way smarter than me), who are also wondering the same thing.
@kylelochlann5053
@kylelochlann5053 Жыл бұрын
Newton's laws of motion don't distinguish between forces that exist (cause a physical acceleration) and those forces that do not exist (fictional forces inserted for accelerated observers). The use of newton's laws and accelerometers verifies that the gravity is not a physical force.
@thomasherrin6798
@thomasherrin6798 Жыл бұрын
Newton is more correct than Einstein, the German put two "E's" before "I's" in his name with no "C's" present, Blimey Charlie, what further proof do you need!?!
@Eliphas_Leary
@Eliphas_Leary Жыл бұрын
That deep dive into gravity (pun intended, Doc?) sounds like jumping into a rabbit hole that leads into a labyrinth wrapped in an iceberg. Looking foreward to it...
@zundap100
@zundap100 10 ай бұрын
Thanks man, this is just amazing, you did it, you explained it on a very understandable way.👍🙂
@Sagittarius-A-Star
@Sagittarius-A-Star Жыл бұрын
Thanks for this excellent presentation!
@misterschifano
@misterschifano Жыл бұрын
Gravity is a force in GR... It forces you to learn math! 😁
@JaimeCharaf
@JaimeCharaf Жыл бұрын
Hi Don. I get it that gravity is the curvature of Spacetime according to General Relativity. But then wouldn't gravitons and general relativity be incompatible? Do we have to pick one or the other?
@narfwhals7843
@narfwhals7843 Жыл бұрын
We are pretty certain that general Relativity is incomplete. So if we get a complete description with gravitons we should pick that. General Relativity will then be a classical, low energy approximation and compatible in that limit. Like Newtonian gravity is compatible with general Relativity in the limit of low velocities and large distances.
@drdon5205
@drdon5205 Жыл бұрын
I would agree with Narf, mostly. Quantum gravity is not an established fact. What is established is that general relativity fails in the world of the super small. Quantum gravity is one possible explanation - a likely one, but not the only one. In quantum gravity, gravity becomes quantized, which means there is a particle transmitting gravity. We call this a graviton. Under this scenario, gravitons are "more right" than general relativity. And the two theories are inconsistent, inasmuch as general relativity assumes that space is smooth, continuous, everywhere differentiable, and all of those math things. Some theories of quantum gravity assume that space is quantized. So those two ideas don't hang together. On the other hand, some quantum gravity theories allow for smooth space and only quantized gravity. Then there's the possibility that quantum gravity is silly. After all, just because the other forces are quantized, doesn't necessarily mean that gravity is. Thus, it would be better to say "small gravity" or something like that. In any event, the bottom line is that there is an incompatibility between GR and quantum gravity ideas that have been kicked around. However, in the spirit of the video, we should embrace our ignorance and simply say "I dunno."
@JaimeCharaf
@JaimeCharaf Жыл бұрын
@@drdon5205 Thank you! That's where I started all those years ago. "I dunno"
@vatsdimri3675
@vatsdimri3675 Жыл бұрын
Or just like the photons are vibrations in electromagnetic field, gravitons can be vibrations in spacetime. I think gravitons can be made compatible with the geometric ideas of spacetime.
@PADARM
@PADARM Жыл бұрын
Or maybe Gravity is an emergent phenomenon like Fluid Dynamics and we will never have a Unified Theory because there is no such thing.
@yrl9389
@yrl9389 Ай бұрын
Such clarity, thank you.
@kristjanpeik7381
@kristjanpeik7381 21 күн бұрын
Great video and channel! That guy really knows how to present information!
@andrewpaulhart
@andrewpaulhart Жыл бұрын
I love the idea of armchair scientists thinking that they can correct you on what gravity is
@infinitemonkey917
@infinitemonkey917 Жыл бұрын
YT is full of armchair scientists and philosophers with their gotcha comments.
@faisafarrah9043
@faisafarrah9043 Жыл бұрын
​@@infinitemonkey917 I really doubt Don's sanity. He's worked at Fermilab too long , and has become jaded. This is why his enjoys tormenting viewers with tortious and contentious twaddle.
@infinitemonkey917
@infinitemonkey917 Жыл бұрын
@@faisafarrah9043 That seemed like a sensible and reasoned response to me.
@greedowins2917
@greedowins2917 Жыл бұрын
Haha, right? I'll freely comment about what I know, and generally I know a lot about physics, but not compared to actual Physicists, and certainly not those of Don's elite caliber.
@jimskea224
@jimskea224 Жыл бұрын
There are other physicists who follow this channel who would state gravity is not a force. After all, general relativity is the most accurate model we currently have of gravity.
@oatmeal7818
@oatmeal7818 Жыл бұрын
By now the answer is we dont know
@davemmar
@davemmar Жыл бұрын
It’s complicated but your answer is clear and concise. With it I feel like I don’t need to answer the question “Is gravity a force?”. But rather use our knowledge of gravity to explain the processes. I am a docent at DMNS.
@killa5963
@killa5963 9 ай бұрын
I'm glad you discussed this.
@noctisarcanus7894
@noctisarcanus7894 8 ай бұрын
What a beautiful field of study. I'd love to study Physics and work in a place like you do, but that's impossible for me. In my country there's little to no investment in science so there's barely work for a Physicist rather than teaching and also, I'm too old for that... Thank you for letting me, at least, get a grasp of this wonderful knowledge. Your channel is, by far, the best in KZfaq and I've seen thousands of science videos in the last 10 years.
@Wedler78
@Wedler78 Жыл бұрын
I like these videos. I feel like I learned something. Thank you very much.
@williamlavallee8916
@williamlavallee8916 Жыл бұрын
Thanks for the walk thru.
@no_one_160
@no_one_160 Жыл бұрын
Amazing articulation. As a teacher, I find your lecture extremely lucid, and try to replicate in class. Thanks!!
@sebap_xc
@sebap_xc Жыл бұрын
This is a great & clean explanation. Thanks from France
@edwardlee2794
@edwardlee2794 Жыл бұрын
Is science absolute ? I thought so, like so many people. With Dr Don s enlightenment, science is the ever perfecting process to get to the true picture of the fact. Before then, scientific observation maybe the observation in the theory of the beholder. Thanks Dr Don and keep up the good work.
@DiedonD
@DiedonD Жыл бұрын
Yes, kindly make another video (or series) of all gravity theories please?
@a.k.hemanth1590
@a.k.hemanth1590 Жыл бұрын
This was such an amazing video!
@bernardkisby4490
@bernardkisby4490 Жыл бұрын
I love that line near the end, "You'll probably be only partly right and then only some of the time",
@nicholashughes8214
@nicholashughes8214 Жыл бұрын
Fascinating explanation Thank you
@Hyxtryx
@Hyxtryx Жыл бұрын
Great video as always.
@Turbohh
@Turbohh Жыл бұрын
I love your work!
@tresajessygeorge210
@tresajessygeorge210 Ай бұрын
THANK YOU... PROF. DR. LINCOLN...!!!
@herval
@herval 7 ай бұрын
Excellent presentation, 🙏 thank u
@user-hp1mt9du6t
@user-hp1mt9du6t 11 ай бұрын
You're right Dr. Lincoln! "It's a force in geometry caused by buzzing of quantum particles". I would personally go for Strings and Gravitons, as Entropy seems to exotic to me. All best!
@jonwebb2417
@jonwebb2417 Жыл бұрын
Great video. One question - does the "force" act on space itself to cause the curvature? i.e. against a tension (so that space "snaps back" to straight line cartesian space once the mass is removed?). Trying to understand if gravity is a force, but acting on space itself rather than directly on the bodies/masses involved...?
@XannyMaGroin
@XannyMaGroin 9 ай бұрын
I think it’s obvious that once the object disappears from the place it resided in the 2 dimensional space time fabric that it is no longer pulling that fabric. This is simply what happens as the sun, earth, est. est. move through space. The place were the object is no longer occupying causes the space fabric to go back to its original state ie: no more object in that spot to manipulate the space time fabric. If gravity kept effecting the space the object no longer resides means there would be gravity in a place were no object is placed and space time fabric would pull objects towards an empty spot in space and we already know that, that does not happen.
@gr637
@gr637 Жыл бұрын
The best channel on physics
@bonniedavis4601
@bonniedavis4601 10 ай бұрын
Brilliant. Thank you.
@voltydequa845
@voltydequa845 Жыл бұрын
From Shakespeare's "What's in a name? That which we call a rose/ By any other name would smell as sweet", to Lincoln's "What's in a concept? That which we call gravity / By any other name would attract as well". Then from Duck Test "If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck.", to common sense's "If it looks like a forces, attracts like a force, weights like a force, then we can't but see it as a force". I like these videos. Please continue to teach that it (all) depends on the relative model / concept. Then hopefully applying the principle of simplest choice. I read, few minutes ago, "In curved space time you have to accelerate just to remain stationary" explanation of relativistic gravity explanation. So it is about changing the meaning of "acceleration". But this way one can generate point-of-view models at free will, and their acceptance will depend upon the administration of conformism. So we are about self-referential models / concepts that to satisfy their logic change, at free will, the meanings of the words / sub-concepts. Dear Lincoln, yes "Physics is all!", but only under the condition it is free. The smell that I feel is that it was hijacked long ago, and that partial liberation is underway nowadays. So "Physics is all when freedom is all!". Based on shared premises (especially meanings), and free of rhetorical decoration.
@charlesadams41
@charlesadams41 Жыл бұрын
Great graphic @3:37! Was just trying to picture that after the 2-dimensional graphic earlier
@clowncarqingdao
@clowncarqingdao Жыл бұрын
Your introduction was a great hook!
@clemwalton4767
@clemwalton4767 9 ай бұрын
Oh my wonderful, and thank u Dr don
@postiemania
@postiemania 20 күн бұрын
I am at the beginning of this video, I must state emphatically I have completed my research on Gravity and am now wondering have we come to the same conclusions. I will have to wait to the end of the video to compare our findings. After watching I agree with approximately 50% of Dr Lincoln's video. Nice video well presented 100% better than I make.
@timmyjones1921
@timmyjones1921 Жыл бұрын
Thank You Professor .
@Libertyfudge
@Libertyfudge Жыл бұрын
I would love a video on entropic gravity!
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