Why E=mc² is wrong

  Рет қаралды 1,112,609

Fermilab

Fermilab

6 жыл бұрын

The most famous equation in all of science is Einstein’s E = mc2, but it is also frequently horribly misunderstood and misused. In this video, Fermilab’s Dr. Don Lincoln explains the real truth about this equation and how people often use it wrong.
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Пікірлер: 3 700
@mickmccrory8534
@mickmccrory8534 5 жыл бұрын
I liked his comment... "In math, your formula can go to infinity. In Physics, that usually means you're wrong."
@cjflipper
@cjflipper 5 жыл бұрын
no, it doesn't mean you're wrong, he said it's good in calculus, but not to evoke in physics. That's because weird shit happens in the world when you calculate with infinity. like weird weird shit.
@nandakumarcheiro
@nandakumarcheiro 5 жыл бұрын
By infinity the Energy goes to infinity but somehow mass will be dissipating into imaginary plane.
@passthebutterrobot2600
@passthebutterrobot2600 5 жыл бұрын
The math says the centre of a black hole should be a singularity, infinitely small with infinite density. Unfortunately we have no way of finding out if, in reality, this is right or wrong.
@mysterymeat586
@mysterymeat586 5 жыл бұрын
Newton's Law of Gravitation can go into infinity. Then General Relativity rescued it, but even that can get blown to hell in a Black Hole.
@karelkrajicek6607
@karelkrajicek6607 4 жыл бұрын
@@cjflipper weird shit, like black holes
@JohnEdwards9999
@JohnEdwards9999 5 жыл бұрын
Misunderstood: YES. Wrong: NO.
@johnrubensaragi4125
@johnrubensaragi4125 5 жыл бұрын
A bit misleading: YES
@AliothAncalagon
@AliothAncalagon 4 жыл бұрын
The problem I see is that he is just misleading as well. Videos like this produce the misconception that energy doesn't contribute to the gravitational field.
@xZak-A-42
@xZak-A-42 4 жыл бұрын
@@johnrubensaragi4125 clickbait: YES
@michael.forkert
@michael.forkert 4 жыл бұрын
aDBo'Ch 1 The Speed of Light is an Absolute Universal Constant, right? What's the use of squaring the speed of light, when the result is the speed of light without squaring it? Einstein's equation isn't wrong, Einstein's most famous equation is a physical contradiction. It's pseudoscientific nonsense.
@michael.forkert
@michael.forkert 4 жыл бұрын
@@jasonfrome6012 Yes it can. In Vacuum. But they teach us there is no bigger speed than light, right? Therefore squaring the speed of light is nonsense. Nobody has ever measured the speed if light. In order to measure the speed of anything, you must have determined the distance between point A and point B, first of all, and after that stopwatch in how much time the object travels from A to B. If you don't know the distance between A and B first, you have nothing to be stopwatched.
@SquirrelASMR
@SquirrelASMR 4 жыл бұрын
Omg that inbox is hilarious. Especially the timestamp frequency and the Nigerian prince email. 😂
@mb-3faze
@mb-3faze 3 жыл бұрын
Apparently we'll have superluminal velocity by last year according to Heather SandStrom :)
@CPaulButler
@CPaulButler 3 жыл бұрын
at 0:53
@SquirrelASMR
@SquirrelASMR 3 жыл бұрын
@@CPaulButler thanks 🤗
@LuisSierra42
@LuisSierra42 3 жыл бұрын
@@mb-3faze RElativity is an illuminati plot
@benhall2146
@benhall2146 4 жыл бұрын
I'm patiently waiting for more videos from Dr. Don!!
@robbertdecruyenaere6572
@robbertdecruyenaere6572 5 жыл бұрын
The clickbait is strong in this one
@broganstorer5670
@broganstorer5670 4 жыл бұрын
Bellatrix Braojos is literally clickbait
@atanu7279
@atanu7279 4 жыл бұрын
No! it's not a clickbait . Special case of a theory is not considered as the theory.
@broganstorer5670
@broganstorer5670 4 жыл бұрын
Dr. Messi it’s not a special case it’s showing how it’s misused, not wrong
@marthagomezdeibarra1708
@marthagomezdeibarra1708 3 жыл бұрын
@@atanu7279 da fuk u meen do
@mikethegamedev
@mikethegamedev 3 жыл бұрын
@@marthagomezdeibarra1708 broken english lol
@spelunkerd
@spelunkerd 6 жыл бұрын
It's been a few years since my course in special relativity. You managed to hit almost all of the highlights in a 6 minute review. Bravo!
@squarerootof2
@squarerootof2 6 жыл бұрын
Special relativity is weird but something you can wrap your head around easily and with basic algebra. If they tried to teach you general relativity first, most people would give up and never learn even special relativity. Are you a maths genius by any chance? What you say is total nonsense or you're just trolling.
@antipal493
@antipal493 6 жыл бұрын
so who are you?
@grains425
@grains425 6 жыл бұрын
spelunkerd that's all you got in a few years? Wow, man, you should go to other courses, this one is not going good for you XD
@Cosmalano
@Cosmalano 6 жыл бұрын
P that doesn’t make sense at all. How can you jump into understanding relativistic gravity if you don’t understand how to deal with things like spacetime, velocity, acceleration, energy, etc in a relativistic context? Further, all GR is about is taking apart different spacetimes into infinitesimal flat spacetimes where you can do special relativity, and then piecing them back together.
@Syputa
@Syputa 6 жыл бұрын
Agreed. I'd teach set theory first and quickly progress to modeling reality at each juncture (algebra, trig, geometry, calculus, etc.) making math practical from the start. Eventually students should experience the practical need for each math ''tool'.
@acrobaticcripple8176
@acrobaticcripple8176 3 жыл бұрын
Oh how I wish I'd been taught by patient teachers. I love this stuff, but have no grounding in mathematics. I'm 72 now and have so many other things to do before kicking it. (The bucket)
@Yopiwastaken
@Yopiwastaken 3 жыл бұрын
U still alive?
@helenamcginty4920
@helenamcginty4920 3 жыл бұрын
Know exactly what you mean. One lifetime isnt enough any more.
@kroneexe
@kroneexe 3 жыл бұрын
@@Yopiwastaken Idiot
@Yopiwastaken
@Yopiwastaken 3 жыл бұрын
@@kroneexe problem?
@sislertx
@sislertx 3 жыл бұрын
@@Yopiwastaken one.day u will be old if your lucky...it aint.fun. And.it.is painful unless u are in CONGRESS because they are not subject to the same laws u must.obey..u can.IMPORT drugs illegal.to use in america using.tax payer planes and money. And YES they have been.caught doing it .most.well known was.Reagan who.got.drugs.for his.dimentia just like Bejing biden.and PELOSI ARE.DOING
@lsporter88
@lsporter88 4 жыл бұрын
That's a much appreciated clarification. Superb presentation.
@psychobill4562
@psychobill4562 6 жыл бұрын
"I don't want my inbox to explode because I said e=mc2 is wrong" tittles video "e=mc2 is wrong"
@fergalfarrelly8545
@fergalfarrelly8545 6 жыл бұрын
William Garton people should actually watch the video before commenting.
@musaabmohamadsaidaldebes3755
@musaabmohamadsaidaldebes3755 6 жыл бұрын
William Garton مح
@radkonpsygami7634
@radkonpsygami7634 6 жыл бұрын
Can we apply the e=(gamma)mc2 equation in order to calculate the energy released by the exploding inbox?
@maythesciencebewithyou
@maythesciencebewithyou 5 жыл бұрын
+fergal You should know by now that most people don't do that
@marlonlacert8133
@marlonlacert8133 5 жыл бұрын
@@wolfgangbuck841
@ivanleon4961
@ivanleon4961 6 жыл бұрын
I wish you guys posted every week! Love your content!
@alexxhoughtaling3438
@alexxhoughtaling3438 4 жыл бұрын
Before I watch this, E=mc^2 only applies to objects at rest, you would need to include the Lorentz factor to apply this to all objects due to the fact mass expands as it approaches the speed of light
@rclrd1
@rclrd1 4 жыл бұрын
Energy increases as speed increases. Mass stays constant. That’s what the γ in E = γmc² means.
@rclrd1
@rclrd1 4 жыл бұрын
_Energy_ increases with increasing speed. _Mass_ stays constant. That's what the γ in E = γmc² is telling us. A lot of people (even text book authors and lecturers!) call γm "relativistic mass" but that's very misleading.
@nukepacifista9188
@nukepacifista9188 3 жыл бұрын
@@rclrd1 But if the applied equation for photon is E = pc , doesnt that mean that mass is still involved? Knowing that p = mv and in that equation mass is still involve.
@jameskriebel4377
@jameskriebel4377 3 жыл бұрын
@@nukepacifista9188 p of a massless particle is h (plank constant) divided by wave length. Simplifying E = p*c to be E = h*f where f is frequency. I think this is true, I could be wrong, been a long time since my modern physics class. Ended up as a RN instead of a high energy physics like I dreamed of.
@frankdimeglio8216
@frankdimeglio8216 3 жыл бұрын
@@rclrd1 TIME DILATION IS FULLY EXPLAINED, AS THE ULTIMATE MATHEMATICAL UNIFICATION OF PHYSICS/PHYSICAL EXPERIENCE IS CLEARLY PROVEN: A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=MC2 IS F=MA. Gravity IS ELECTROMAGNETISM/energy. (The stars AND PLANETS are POINTS in the night sky.) Time DILATION ULTIMATELY proves ON BALANCE that electromagnetism/ENERGY IS GRAVITY, as C4 is a POINT that is ELECTROMAGNETIC/GRAVITATIONAL (ON BALANCE) as SPACE; AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Time DILATION proves that electromagnetism/ENERGY IS GRAVITY, AS E=mc2 is DIRECTLY and fundamentally derived from F=ma. E=mc2 IS F=ma. A planet AND a star thus constitute what is A POINT in the night sky. It ALL CLEARLY makes perfect sense. Gravity IS ELECTROMAGNETISM/ENERGY. ACCORDINGLY, I have ALSO fully explained the MATHEMATICAL UNIFICATION of Einstein's equations and Maxwell's equations (GIVEN THE ADDITION OF A FOURTH SPATIAL DIMENSION); AS E=mc2 IS F=ma. The Sun AND the Earth are F=ma AND E=mc2. Great. SO, ultimately and truly, TIME is NECESSARILY possible/potential AND actual IN BALANCE; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. AGAIN, time DILATION ULTIMATELY proves ON BALANCE that E=MC2 is F=ma; AS ELECTROMAGNETISM/energy is gravity. Great. Indeed, this NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE. (E=mc2 IS F=ma.) Therefore, INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. SO, GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Accordingly, the rotation of WHAT IS THE MOON matches it's revolution. MOREOVER, a given PLANET (including WHAT IS THE EARTH) sweeps out equal areas in equal times consistent WITH/AS E=MC2, F=MA, AND what is perpetual motion; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, AS E=MC2 IS F=MA; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT !!! It ALL CLEARLY makes perfect sense. BALANCE and completeness go hand in hand. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. E=mc2 IS F=ma. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent with/as what is BALANCED ELECTROMAGNETIC/gravitational force/ENERGY, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE.) E=MC2 IS F=ma. Objects fall at the SAME RATE (neglecting air resistance, of course), AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity IS ELECTROMAGNETISM/energy. E=MC2 IS F=ma. It ALL CLEARLY makes perfect sense. Magnificent !!! By Frank DiMeglio
@amribrahim7850
@amribrahim7850 2 жыл бұрын
Thanks so much for your clear explanation. You're helping us to eliminate misconception.
@tobiastriesch3736
@tobiastriesch3736 5 жыл бұрын
The background music when E=mc^2 appeared the first time made me laugh - well done editor!
@xan9224
@xan9224 5 жыл бұрын
E=mc2 Aka Einstein married cousin twice
@albionmeraj6119
@albionmeraj6119 5 жыл бұрын
haha
@passthebutterrobot2600
@passthebutterrobot2600 5 жыл бұрын
Very good! Also that's a neat way to remember the equation
@BillFromTheHill100
@BillFromTheHill100 5 жыл бұрын
He was a cad
@mr.h4267
@mr.h4267 5 жыл бұрын
Married cousin SQUARED, meaning he married twin cousins.
@E-2.71
@E-2.71 5 жыл бұрын
So, Your Point?
@dc9404
@dc9404 5 жыл бұрын
Thank you for your explanation. Please keep this series alive. I always learn something new.
@CJ-ib2jy
@CJ-ib2jy 4 жыл бұрын
I know this video is 2 years old but I love your videos. You have answered some of my most burning questions in physics (in a your video about time dilation). I loved physics in college and sometimes wish I had gone back and gotten a PhD just to learn more stuff.
@sergiomerino1434
@sergiomerino1434 2 жыл бұрын
I’m really thrilled to read you are serious about your studies. If you find enjoyment in physics because of the sheer content then my friend I have some great news for you although this is not physics which simplifies the world into letters and numbers and use scorpion looking formulas. The book of our lord Jesus Christ will bring you much more joy and enlightened you on the truth about how the world you live in got here.
@andrew7787
@andrew7787 6 жыл бұрын
It would be nice to have an explanation of what momentum of a massless particle means since laymen define momentum in terms of mass and velocity.
@thechosenone5644
@thechosenone5644 10 ай бұрын
Yeah, I’d like more of an explanation on that as well. I just assume it’s there for conservation of momentum to work.
@Narokkurai
@Narokkurai 6 жыл бұрын
I like to think that you were joking when you showed an inbox full of emails like "RELATIVITY IS AN ILLUMINATI CONSPIRACY!" but I know too much about the internet.
@vampyricon7026
@vampyricon7026 6 жыл бұрын
+
@johnnemeth5099
@johnnemeth5099 6 жыл бұрын
Conspiracy or not, a theory that gives physical characteristics to the concept of "time"...is at least imaginative.
@ThinkTank255
@ThinkTank255 6 жыл бұрын
Not too long ago I would have thought such a proposition to be absurd, but actually, it is not far from the truth. Essentially, our whole theory of gravity is wrong, and people still venerate Einstein so much they refuse to admit it. There really is almost no evidence that supports General Relativity, and Special Relativity is provably incomplete as a theory. It is time for scientist to wake up and realize this, but academia is just stuck in its dogmatic ways more than ever before in history. Einstein himself would never have gotten his theory published in today's academia. The arrogance of modern academics just oozes from every modern academic's being. It is a really sad time for academia. It is time for a *major* revolution in how we do things in academia. That is the only solution.
@alexvolkov223
@alexvolkov223 6 жыл бұрын
Can you provide some evidence for the theory of gravity, or relativity being wrong? I don't think anyone in the right mind is going to trust a stranger on the internet with no evidence, compared to the entire world's best scientific minds.
@kalyannatarajan1695
@kalyannatarajan1695 8 ай бұрын
Awesomely well explained and a classic example of how clickbait CAN BE IMPORTANT when used correctly to dispel myths….👏👏👏
@kevinjohnston8341
@kevinjohnston8341 4 жыл бұрын
So basically it's really Pythagorean Theorem with side lengths pc and mc^2, and of course hypotenuse E.
@krrishmaheshwari4860
@krrishmaheshwari4860 3 жыл бұрын
nice way to memorise it!
@arsh0189
@arsh0189 2 жыл бұрын
@@krrishmaheshwari4860 its very easy
@mn_ambrose6488
@mn_ambrose6488 6 жыл бұрын
Thanks for these videos. You have a way to clear up the issues that had me stuck. Full respect to all of you that put in the effort to master these concepts.
@BAHRAMCR
@BAHRAMCR 5 жыл бұрын
What a great teacher. This professor is the best.
@BAHRAMCR
@BAHRAMCR 5 жыл бұрын
The Dude I agree, he is a great teacher.
@mr.h4267
@mr.h4267 5 жыл бұрын
@Bantham Nobilis God forbid a human being ever being wrong.
@maczetamaczeta189
@maczetamaczeta189 4 жыл бұрын
@Bantham Nobilis When he is wrong he has bunch of highly acclaimed colleagues from his work to back him up. There is a difference between watching amateur science channels and a Fermilab one.
@brandondefalco8843
@brandondefalco8843 3 жыл бұрын
This was actually immensely helpful. I just thought the other day “how does that work for massless particles?” Thank you!
@lexluthor6906
@lexluthor6906 Жыл бұрын
a derivative of Schrödinger's equation is an expansion of Einstein's equation by adding the momentum component. e=(m^2*c^2)+(p^2*c^2).
@Libertyfudge
@Libertyfudge 3 жыл бұрын
Thank you for the videos. Your videos have been helpful in understanding physics better
@SpaghettiToaster
@SpaghettiToaster 6 жыл бұрын
It's important to note that in the general formula in this video, momentum doesn't mean the familiar m×v, because light has no mass. In this case, p=h/λ. I think it would be good to cover this fact and an explanation in a follow-up video in order for these equations to really make sense. I think right now it's confusing to people because the video explains how E = γmc^2 doesn't make sense for massless particles, but offers as an alternative E = pc, which the same people who thought E = mc^2 would apply might think means E = mvc, which obviously doesn't make sense either.
@MartinTutko
@MartinTutko 6 жыл бұрын
SpaghettiToaster Thank you for raising this point .. very valid feedback. It should have been covered in this video.
@ToadInTheWoods
@ToadInTheWoods 5 жыл бұрын
Yes. I've been trying to work this out. He says "...momentum, which is the measure of the motion of a particle." But in Newtonian physics, momentum involves mass, not just motion. So he touches on it there, but doesn't develop it. I seem to have understood that the switch from Newtonian momentum to quantum momentum comes down to Lagrangian and Hamiltonian equations in which momentum is described without mass? No? But looking at these equations and their explanations in Wikipedia etc, I can't get it. (In my uneducated misunderstanding of these equations, it looks like mass is snuck in there as a slowing--inertial resistance--of motion.) Thought from the title there might be something helpful here, but I'll keep working on it.
@Appregator
@Appregator 5 жыл бұрын
Thanks because I was wondering about the momentum p. So what exactly is h? Also if momentum is not m*v then what does it denote here?
@petersinclair3997
@petersinclair3997 5 жыл бұрын
ToadInTheWoods Would not motion be associated with direction of movement, while velocity with speed? Momentum = Mass * Velocity.
@ursaferrarius
@ursaferrarius 5 жыл бұрын
@ 4:25 we let mass = 0. If momentum (p in this case) is a product of mass and velocity than why does p not = 0 as well. Which makes sense if it has no mass it has no energy... or did you mean we are letting the mass approach 0?? I'm respectfully confused.
@ashimjoshi1425
@ashimjoshi1425 5 жыл бұрын
light is both a wave and a particle. So, not only does it have a momentum, it also has a wavelength. We relate these two quantities using something called the de Broglie wavelength: p = h / lambda.
@user-ci5nl3ml4m
@user-ci5nl3ml4m 4 жыл бұрын
you are awsome. I really love your videos. we have a big lack of having someone here in our country,Iran like you and your team.
@805atnorafertsera6
@805atnorafertsera6 3 жыл бұрын
The pace of explanations suits me fine even if I'm not sure I understand all the implications. Thank you for a great clip.
@RiadhBoukratem
@RiadhBoukratem 6 жыл бұрын
How about the origin of Planck constant and its accuracy in E= hv?
@panwaraditaya
@panwaraditaya 6 жыл бұрын
A constant or quantity which never changes or a fixed value the problem is with the constant value these holds true for certain conditions and to certain limits the day we come to know about how things works above these limits and conditions whole physic and mathamatics will change and problem like time travel and transportation will be solved
@jwenting
@jwenting 5 жыл бұрын
Or as I was taught: E=mc2 is a good enough approximation for situations where speed is relatively low compared to c.
@marthagomezdeibarra1708
@marthagomezdeibarra1708 3 жыл бұрын
¹E ²= ³m ⁴c² Perhaps that is why Dr. E simplified things by saying Energy "(E)" equal mass times the speed of light squared (c²)
@enysuntra1347
@enysuntra1347 3 жыл бұрын
Even that will fail for massless objects like photons.
@frankdimeglio8216
@frankdimeglio8216 2 жыл бұрын
@@enysuntra1347 TIME DILATION ultimately proves ON BALANCE that E=MC2 IS F=ma, AS ELECTROMAGNETISM/energy is gravity. News flash ! Gravity IS ELECTROMAGNETISM/energy, AS E=MC2 IS F=MA. The Earth (A PLANET) is a MIDDLE DISTANCE form that is in BALANCED relation to the Sun AND the speed of light (c), AS the stars AND PLANETS are POINTS in the night sky; AS E=mc2 IS F=ma. TIME is NECESSARILY possible/potential AND actual IN BALANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!! By Frank DiMeglio
@Jannikheu
@Jannikheu 4 жыл бұрын
I have somehow trouble understanding the "mass at rest" part. If the relative velocity is 0 gamma is 1 right and there exists a "mass at rest" relative to the observer. But when the particle is moving gamma has to change but there is also no "mass at rest" relative to the observer anymore. So I would think m itself has to change as well. Anyone who can help me out?
@sumaks4878
@sumaks4878 4 жыл бұрын
So if v is the relative velocity, two people moving at different speeds relative to the object must observe different energies right? How is that possible, please explain
@archaeologistify
@archaeologistify 6 жыл бұрын
I like your format, quite entertaining.
@douggwyn9656
@douggwyn9656 5 жыл бұрын
Historically this has been called the issue of "relativistic mass" (which incorporates γ) versus "rest mass" (which does not incorporate γ). The utility of the concept of "relativistic mass" has been debated, but there are aspects worth knowing for both concepts. The most important is whether a moving particle *acts* as though its kinetic energy contributes to its gravitational mass, i.e. whether the gravitational attraction generated by the particle is greater due to the motion. According to experiment, it is.
@cesarjom
@cesarjom 3 жыл бұрын
Also gamma can be expressed as infinite series thus showing in the low velocity condition (ie v
@ryostyles9904
@ryostyles9904 Жыл бұрын
In short, it's not wrong, it's a special case and it can be made better with therefore resulting in those 2 equations.
@alexandrebelinge8996
@alexandrebelinge8996 6 жыл бұрын
Always fun getting a new video !
@BeenuZz
@BeenuZz 5 жыл бұрын
gamma is also the term that links the time in the moving referential to the time in the reference frame, according to the .Lorenz transformation.
@skierpage
@skierpage 3 жыл бұрын
Is it also the spatial contraction observed between moving reference frames?
@frankdimeglio8216
@frankdimeglio8216 3 жыл бұрын
@@skierpage TIME DILATION IS FULLY EXPLAINED, AS THE ULTIMATE MATHEMATICAL UNIFICATION OF PHYSICS/PHYSICAL EXPERIENCE IS CLEARLY PROVEN: A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=MC2 IS F=MA. Gravity IS ELECTROMAGNETISM/energy. (The stars AND PLANETS are POINTS in the night sky.) Time DILATION ULTIMATELY proves ON BALANCE that electromagnetism/ENERGY IS GRAVITY, as C4 is a POINT that is ELECTROMAGNETIC/GRAVITATIONAL (ON BALANCE) as SPACE; AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Time DILATION proves that electromagnetism/ENERGY IS GRAVITY, AS E=mc2 is DIRECTLY and fundamentally derived from F=ma. E=mc2 IS F=ma. A planet AND a star thus constitute what is A POINT in the night sky. It ALL CLEARLY makes perfect sense. Gravity IS ELECTROMAGNETISM/ENERGY. ACCORDINGLY, I have ALSO fully explained the MATHEMATICAL UNIFICATION of Einstein's equations and Maxwell's equations (GIVEN THE ADDITION OF A FOURTH SPATIAL DIMENSION); AS E=mc2 IS F=ma. The Sun AND the Earth are F=ma AND E=mc2. Great. SO, ultimately and truly, TIME is NECESSARILY possible/potential AND actual IN BALANCE; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. AGAIN, time DILATION ULTIMATELY proves ON BALANCE that E=MC2 is F=ma; AS ELECTROMAGNETISM/energy is gravity. Great. Indeed, this NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE. (E=mc2 IS F=ma.) Therefore, INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. SO, GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Accordingly, the rotation of WHAT IS THE MOON matches it's revolution. MOREOVER, a given PLANET (including WHAT IS THE EARTH) sweeps out equal areas in equal times consistent WITH/AS E=MC2, F=MA, AND what is perpetual motion; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, AS E=MC2 IS F=MA; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT !!! It ALL CLEARLY makes perfect sense. BALANCE and completeness go hand in hand. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. E=mc2 IS F=ma. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent with/as what is BALANCED ELECTROMAGNETIC/gravitational force/ENERGY, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE.) E=MC2 IS F=ma. Objects fall at the SAME RATE (neglecting air resistance, of course), AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity IS ELECTROMAGNETISM/energy. E=MC2 IS F=ma. It ALL CLEARLY makes perfect sense. Magnificent !!! By Frank DiMeglio
@stevebh9846
@stevebh9846 3 жыл бұрын
The second term involves momentum so E mc^2 is always right when your object total momentum or even system momentum is zero. Since momentums of particles cancel when they go in different directions E = mc^2 is always true in the COM (center of momentum) frame. So it’s true for a container of gas on a scale. You can look at m = E/c2 and see you’re weighing heat, kinetic energy, potential energy, and everything. If the container isn’t moving, you automatically are in its COM frame. Light is a case where one photon has to be moving at c so it has no COM frame (it would have to be still). Thus you always get p and a mass of zero. One photon is massless. But not two photons! If they are not going in the same direction you can get rid of their momentum by finding a COM frame where they have equal energy and are moving exactly away from each other. Then m = E/c^2 where E is the sum of photon energies. So one photon has no mass but two or more generally do. The blackbody radiation inside a container has mass. And even if one free photon has no mass, if you trap it in a container its energy adds mass to the system. That’s because you’re measuring weight (mass) in the COM frame where the container rebounds from the photon as it bounces, and total p is zero.
@sushiman8794
@sushiman8794 2 жыл бұрын
Not gonna read this coz it’s too long but yes whatever you said I agree
@ruparkyitin
@ruparkyitin Жыл бұрын
Are Photons massless?? I think.. Photons have mass but so so small that scientists could not measure it.
@FazlayElahi
@FazlayElahi 2 жыл бұрын
I read all the articles related to Special Theory of Relativity from Arthur Beiser's "Concepts of Modern Physics", but nowhere I didn't find anything like the importance and usage of the "Relativistic Energy-Momentum Relation" described by Dr. Lincoln in this video with the illustration of the " massless" particle Photon. Thank you so much Fermilab ❤️
@drteeth7054
@drteeth7054 5 жыл бұрын
I love physics, but my maths abilities stink. I have fallen innlove with this channel. Thanks
@barbossablink2969
@barbossablink2969 3 жыл бұрын
Even Einstein had to hire a mathematician to get his calculations and proofs checked. Your curiosity is enough to let you moving in physics
@mr.wolfgaming9546
@mr.wolfgaming9546 3 жыл бұрын
@@barbossablink2969 thanks
@omrilin3552
@omrilin3552 5 жыл бұрын
hii i have a question why is the second equation so similar to Pythagoras sentence? is it because E is a skelar? much like distance and length of a line? thanks for a great video 👍
@EliteTeamKiller2.0
@EliteTeamKiller2.0 5 жыл бұрын
I'm so glad you noticed that! You are a smart cookie, because that is not a coincidence at all. In Euclidean geometry, distance is given by this: d² = x² + y ² + z² . In special relativity, there is a distance called the spacetime interval. It's not three dimensional. It's four-dimensional, and it involves a negative sign. It looks like this. s² = -ct² + x² + y ² + z². Or like this: s² = ct² - x² - y ² - z². Either is true depending on your sign convention (as long as you stick with it). It's kind of a hyperbolic geometry, rather than Euclidean. Minkowski commented that you could think of time being imaginary space or vice versa (remember that the imaginary number is the square root of -1, so the imaginary number squared is -1). Regardless, the point is there are things similar to a distance in special relativity, and they are agreed upon by every observer (just like a distance is universally agreed upon in Euclidean geometry and Newtonian physics). If you're familiar with vectors, you would know what a dot product is. Well, a vector dotted with itself gives it's own length squared, which is what we're going here, except instead of the usual dot product, it's a pseudo-dot product (usually called the Minkowski inner product). In the case of the second energy equation, that is exactly what we are looking at, just with terms rearranged. Here is the equation given: E² = (mc²)² + (pc)² But here is the equation written in terms of the Minkowski inner product: (mc²)² = E² - (pc)² So the square of the length of the energy-momentum four-vector (as it is sometimes called) is actually (mc²)². I know it feels weird to write it like that with the negative sign, but it's there for a reason related to the hyperbolic nature found a lot in special relativity. As for where that sort of hyperbolic nature comes from, he showed some of it with the gamma factor graph. The gamma factor, 1/√(1 - (v/c)², has hyperbolic behavior as v increases.
@douggwyn9656
@douggwyn9656 5 жыл бұрын
ct² should have been c²t²
@mr.h4267
@mr.h4267 5 жыл бұрын
@@EliteTeamKiller2.0 Wowwwe. Someone in KZfaq comments with coherent thoughts. May you go far, be rich, and get fat.
@wayneyadams
@wayneyadams 4 жыл бұрын
Hey dude, it is scalar. like a scale value.
@yyyy-ml9pr
@yyyy-ml9pr 3 жыл бұрын
I searched for you are /e mistake meme and found this
@christ2906
@christ2906 4 жыл бұрын
“I don’t want emails complaining about my statement that e=mc2 is wrong”. I just want emails complaining about my clickbait title for this video” lol
@tylerdurden15671
@tylerdurden15671 5 жыл бұрын
I wish I had a teacher like you at school. You are very clear even with a such complex subject.
@jessstuart7495
@jessstuart7495 6 жыл бұрын
0:10 I would bet more people know E=mc^2, than know F=ma. It "sounds" smart, and to a lot of people, the appearance of being intelligent is more important than actually understanding how stuff works.
@harryscrotum007
@harryscrotum007 5 жыл бұрын
Equatiom for force, remember that from high school. Mass × acceleration
@VoidHalo
@VoidHalo 5 жыл бұрын
That's because even if you're the smartest person in the world, no one would take you seriously if didn't look like you know what you're talking about. Humans are a visual species.
@DragonKastle
@DragonKastle 5 жыл бұрын
thats me!
@beenaplumber8379
@beenaplumber8379 5 жыл бұрын
Almost nobody who knows either equation (and that's almost nobody) understands what it means or how to apply it. Like Neil Tyson says, we need more scientific literacy.
@Upstreamprovider
@Upstreamprovider 5 жыл бұрын
@@harryscrotum007 Yeah, it's Newton's second law.
@hypercomms2001
@hypercomms2001 4 жыл бұрын
What about when elements are fused, and part of their mass is converted into binding energy, does that not follow Einsteins equation?
@tomkolo8115
@tomkolo8115 4 жыл бұрын
my last Q, at 5:00 U mention gamma and particles at rest in the equation...plz specify how can something be at rest and "isn't moving", do u have a specific frame of reference where things are not moving? Thank You, I am not a physicist, just trying to understand the concepts
@liskurex
@liskurex 5 жыл бұрын
0:52 don't read the emails subject. I am having a stroke now.
@LearnEureka
@LearnEureka 6 жыл бұрын
Sir can a particle having zero mass possess momentum ?
@giovannip8600
@giovannip8600 5 жыл бұрын
Exactly
@feynmath
@feynmath 5 жыл бұрын
yes they do I think Mr. Faraday was the guy who demonstrated that experimentally by making thin foils of some material rotate by incidenting light on it...
@shuffiemonkey
@shuffiemonkey 5 жыл бұрын
YES a photon is a mass less particle but can have impact to other particle such as electron and cause effect on its momentum. See compton effect.
@EliteTeamKiller2.0
@EliteTeamKiller2.0 5 жыл бұрын
p = E/c
@phucminhnguyenle250
@phucminhnguyenle250 5 жыл бұрын
Yes, it's a pure force particle (it's a boson) and it doesn't experience time, so it's massless.
@piotrstrzelczyk5248
@piotrstrzelczyk5248 3 жыл бұрын
It is interesting that gamma correction is very similar to the Prtndtl-Glauert correction for compressible subsonic flows: PGC := 1/SqRt(1-Sqr(Ma) ) . BTW: In supersonic flows Mach cone plays this same function as a light cone in Special Relativity.
@ratbuddy4642
@ratbuddy4642 4 жыл бұрын
So, say a ship is about to travel near the speed of light and the temperature is say 70' degrees Fahrenheit at start will the temperature lower as it gets closer to the a speed light or will it increase?
@TalladegaTom
@TalladegaTom 6 жыл бұрын
I love these! Please keep them coming.
@mihaimihai7748
@mihaimihai7748 6 жыл бұрын
I am beginning to believe that the Earth is not that flat anyway !
@oisnowy5368
@oisnowy5368 6 жыл бұрын
Don't fall for that. Flat is justice!
@georgelionon9050
@georgelionon9050 6 жыл бұрын
Yes it's not flat, it's bulky. We have mountains. Proof finished.
@Shivam1wastaken
@Shivam1wastaken 6 ай бұрын
I would like to ask something, if energy = momentum times speed of light in a vacuum, for a photon, isn't tht just zero, since momentum is mass times velocity and a photon as you stated has no mass, I might be wrong and hence I would rly like sm1 to explain it to me further
@PriangsuBanerjee
@PriangsuBanerjee 3 ай бұрын
Einstein's E=mc2 formula really wrong brother, it's alternate formula is Energy= m-(m÷10) one Indian scientist find it , also mathematically proved it, you can Google search by sree debasish Dasgupta Nasa , or sree debasish Dasgupta mendeley data of sree debasish Dasgupta google etc... and read his articles, specially his "A Story Of Latest Scientific Discovery" article
@hawzhir6903
@hawzhir6903 3 жыл бұрын
I like how he was wearing Albert's Shirt and at the same time trying to brand him as he was wrong. ( I mean apparently )
@Anonymous_self
@Anonymous_self 3 жыл бұрын
🤣🤣🤣🤣🤣respect, follow and find the fault. It is only possible to find wrong from things if you invest your time in that. He has invested lots of time in Einstein's theory that is why he got his fault. In the same time by investing time he became a fan of Einstein.
@TheConqueror009
@TheConqueror009 3 жыл бұрын
No he wasn't trying to explain Einstein was, rather than conception that people have of the equation because many people are uneducated and stupid. You proved his point
@willh2739
@willh2739 2 жыл бұрын
@@Anonymous_self no, he did not find a fault. That is not what he meant with this video. He does not literally mean that E=mc^2 is wrong.
@Neo0110
@Neo0110 5 жыл бұрын
Me watching this video not even knowing what e=mc2 means!
@soelinhtet6064
@soelinhtet6064 5 жыл бұрын
me too
@ScienceChap
@ScienceChap 5 жыл бұрын
Energy = mass x (speed of light x speed of light)
@_H_A_R_S_H_I_T_
@_H_A_R_S_H_I_T_ 5 жыл бұрын
You are doomed!!
@MrWick-oe5ij
@MrWick-oe5ij 4 жыл бұрын
You must be a kid
@iCore7Gaming
@iCore7Gaming 4 жыл бұрын
Did you not go to school?? Tf
@DJKoollord
@DJKoollord 6 жыл бұрын
Is wrong because E=MC2 "Energy=Midium Cofee 2 Sugar" the correct formula is E=LC2 "Energy=Large Cofee 2 sugar"
@awawpogi3036
@awawpogi3036 6 жыл бұрын
*medium
@awawpogi3036
@awawpogi3036 6 жыл бұрын
Dia Betus extra smalln't
@CICADA-zp2oo
@CICADA-zp2oo 6 жыл бұрын
you need to recalculate for tea and sucgar in shape of black cube of Saturn
@ellauchiha302
@ellauchiha302 5 жыл бұрын
Wow u need weeds
@ellauchiha302
@ellauchiha302 5 жыл бұрын
Coffee *
@carbon_no6
@carbon_no6 2 жыл бұрын
Don: now you know how to use it, correctly! Me: ha, you don’t know me very well, then!
@vincenzofarano8272
@vincenzofarano8272 4 жыл бұрын
So, I have a question. Please, allow me to take if simply: if the momentum is 0 (p=o) then the formula is E^2=(mc^2)^2 which that the result of the root square is plus and menus, so what about the "negative" energy?
@whiskeythrottle9369
@whiskeythrottle9369 6 жыл бұрын
Is there someone who can explain to me the relationship between redshifting and conservation of energy?
@KafshakTashtak
@KafshakTashtak 6 жыл бұрын
This is what I understand, I might be wrong though. Red shifting ---> power becomes less, but time dilates. More time X less power = same amount of energy. But I don't know how that works for photos. I mean if a photon is passing around and it is getting red shifted, what has happened to its energy? Good question though.
@materiasacra
@materiasacra 6 жыл бұрын
There is no direct relation. Redshifting is the result of different observers looking at the same electromagnetic wave. I'm relaxing in my chair while observing the wave, while you try your best to travel along with an electromagnetic wave, say. Of course you can't keep up with the speed of light, but you can move with a speed v less than c in the same direction as the wave is propagating. Relative to you the electromagnetic wave is still moving with the speed of light according to a basic postulate of Special Relativity, but its energy (as observed by you) is less than the energy I observe. For you the wave has shifted to a redder part of the spectrum, compared to my view of the wave. Conservation of energy applies to isolated physical systems, and it means that the sum of all the energy in the system does not change with time. This is a law of nature, and hence is independent of the state of (uniform) motion of the observer. In Special Relativity this is only possible if momentum is also conserved, because the energy found by one observer is a mixture of the energy and momentum found by another observer who happens to be moving uniformly relative to the first observer.
@TheZenytram
@TheZenytram 6 жыл бұрын
think that way, the energy of the sound of a car passing besides you changes? or just its distance relative to you?
@pierrelacombe4757
@pierrelacombe4757 6 жыл бұрын
Very, very interesting question !
@vampyricon7026
@vampyricon7026 6 жыл бұрын
What about redshift due to the expansion of the universe?
@ruel7401
@ruel7401 5 жыл бұрын
So this is why they taught us that there's a difference between accuracy and precision in Physics. 🤯
@themagus5906
@themagus5906 3 жыл бұрын
Yes! Indeed! All sciences are inexact by the very nature of "science". From a chemist / physicist.
@demonlemon6454
@demonlemon6454 Жыл бұрын
I have an important question. How can something not be moving in the universe?
@davidsault9698
@davidsault9698 4 жыл бұрын
Clear explanation of something I apparently needed explained. Now, E=pc, how can you have momentum without mass?
@Asankhjitsingh
@Asankhjitsingh Жыл бұрын
Thinking about same problem
@w.t.h.2040
@w.t.h.2040 6 жыл бұрын
Einstein himself allready told this in his days.
@pibroch
@pibroch 6 жыл бұрын
Absolutely - he warned against using the "relativistic mass" construct.
@Ole_Rasmussen
@Ole_Rasmussen 5 жыл бұрын
It's almost as if we got all this shit from him. Think about it. It's mindblowing, really.
@lekhshisodiya6094
@lekhshisodiya6094 5 жыл бұрын
have you been there
@EliteTeamKiller2.0
@EliteTeamKiller2.0 5 жыл бұрын
@@Ole_Rasmussen Actually we didn't. He was by far the main contributor for general relativity, but this isn't general relativity; it's special relativity. Special relativity is the brainchild of dozens or more physicists, with a few in particular being very important. Lorentz probably most of all, along with Poincaré, with Einstein making the key insight all his colleagues were missing that completed the theory (but it's such an important insight that within a decade or so his name became the one attached to special relativity, even though the truth of the matter is that it was a collective effort). The key insight Einstein made was the the previously figured out equations and physics weren't just "apparently true" results, or results that only applied in the rest frame of the aether, or some other special frame, but that they were simply the real, physical result of space and time being exactly what the equations said they were. Using this insight, that the results of special relativity were exactly as they appeared to be, he derived special relativity with the two main postulates we now associate with it (the speed of light is the same for all inertial observers and the principle of relativity holds for all inertial observers).
@gloomywheel8378
@gloomywheel8378 5 жыл бұрын
@@pibroch well relativistic mass was first proposed by him then he through it through for a couple weeks and went back on that shit if i remember right
@andrewstoll4548
@andrewstoll4548 5 жыл бұрын
If I were to tell you I completely understood this, my Dunning Kruger would be in full effect.
@enysuntra1347
@enysuntra1347 3 жыл бұрын
It's manageable. \gamma is kind of a "time dilation"; you have to stop seeing velocity as length/time, but as a fundamental value given in relation to c. sqrt(1²-(v/c)²) is an absolute value that negates direction. Dr Lincoln doesn't say WHY this is so, just HOW to calculate; the real "spice" nobody understands is in this "why" part. However, in recalculating the equations, some signs seem to be unwilling to be what I want them to be...
@andrewstoll4548
@andrewstoll4548 3 жыл бұрын
@@enysuntra1347 ummmmm ok sure.... 😉😉😉
@enysuntra1347
@enysuntra1347 3 жыл бұрын
@@andrewstoll4548 kzfaq.info/get/bejne/fq-BaMuf0pyVfIU.html might help. Going to revisit it in the morning, too.
@michaeldefalco171
@michaeldefalco171 4 жыл бұрын
Don: a very tough crowd here.
@wachowski9525
@wachowski9525 3 жыл бұрын
"don't boo me I'm right!"
@137rodrigo
@137rodrigo 4 жыл бұрын
No, the title is not a clickbait. It is a 6 min video, so there is more to it, much more. Beside E=mc^2 is as correct as a broken clock is correct, I can suggest reading some of L. B. Okun papers for more clarification: "The Virus of Relativistic Mass in the Year of Physics" for example.
@yehiaelyamani6943
@yehiaelyamani6943 6 жыл бұрын
Elegant explanation for such complicated subject. Big thank you for this episode as well as the whole content of this channel : you have actually made physics and math Enjoyable!
@NonsoVincent_
@NonsoVincent_ 5 жыл бұрын
What does it mean that an object isn't moving with respect to you? I thought objects only move relative to their observers
@mytester6208
@mytester6208 5 жыл бұрын
if both of you and the object moving in the same direction at the same speed, object isnt moving with respect to you the observer... of course if there is such a thing that an object or you not moving? when you are not moving on earth, means you are moving/spinning and spiralling along at the galaxy/universe at the same speed as earth's speed/rotation etc... so technically both are stationary respect to eachother...
@mytester6208
@mytester6208 5 жыл бұрын
some interesting mathematical anomaly happens for objects that are just beyond our observable bubble that is ~14 billions light years, which means they are speeding away from us at the min at c speed! which makes the equation a bit weird? because v>=c? so gamma goes to infinity or negative "i" territory maybe alternative dimension appears?! maybe we will find about it in stranger things season 3 when upside down comes alive again :)
@scout1710
@scout1710 4 жыл бұрын
@@mytester6208 hi
@calebpoemoceah3087
@calebpoemoceah3087 Жыл бұрын
Does this equation work with virtual particles moving faster than the speed of light ?
@ratnam7728
@ratnam7728 5 жыл бұрын
Thanks a lot for sharing ... I had the doubt from a long timrLove ur channel
@MRHUESO
@MRHUESO 6 жыл бұрын
kudos! so clear, so well explained. +1 thing learnt for today
@smhemant9111
@smhemant9111 6 жыл бұрын
Isn't the original mass of the object is the confined energy in it.
@KenWWalker
@KenWWalker 6 жыл бұрын
The following is the perspective (likely incomplete) that I've gained looking at explanations of the equation over the last couple years. Mass and energy should be viewed as separate measurements. The mass (resistance to acceleration) of an object at rest is a measure of the total energy confined within the object. Einstein is predicting not only that confined energy resists acceleration but that it is the only thing that resists acceleration. One can view mass as an emergent property caused by confined energy. If you measure the mass of an object to be m, then mc2 is a prediction of the total amount of energy within the object. However, it does not tell you how much energy is kinetic vs potential, where the energy is located, or give any clue as to how to find it. It was only in the 1960s and ‘70s with the development of the quark theory of nucleons, QED and QCD plus techniques for solving their equations, along with the proposal of a Higgs mechanism that physicists were finally able to explain exactly where all the energy was located that Einstein predicted in 1905.
@LoubrielJayneberg
@LoubrielJayneberg 3 жыл бұрын
Thank you! Been looking for this video
@gustafeibel4919
@gustafeibel4919 3 жыл бұрын
Can anyone explain as to how/why a photon that does not have any mass (m) has a momentum (p) ?
@funnycatvideos5490
@funnycatvideos5490 3 жыл бұрын
no because it is a fallacy through and through
@davidkosa
@davidkosa 6 жыл бұрын
Does having a relation with a relative violate any laws of relativity?
@tecnic63
@tecnic63 5 жыл бұрын
According to Sir Thomas Beeching, "Try everything once - except folk dancing and incest".
@beenaplumber8379
@beenaplumber8379 5 жыл бұрын
It violates the laws of the State of Minnesoat.
@heimdall1973
@heimdall1973 5 жыл бұрын
E = mc^2 is right when moving, too... as long as m means total mass. If m_0 is the mass at rest, then total mass is m = gamma × m_0. And yes, mass does increase with speed. (Of course, that's only noticeable when the speed is close enough to the speed of light.)
@gloomywheel8378
@gloomywheel8378 5 жыл бұрын
mass does not increase with speed and this was what he was kinda trying to convey with this video, the formula E=mc^2 makes a conceptual error. i've already written out a full response to another comment so i will just repost it here. original comment: I thought that as speed increases that mass literally and physically increases, is this not true? not really, this is why adding the gamma into E=ymc^2 is important, when an object is at rest y=1 as the object gains energy it is gamma (y) that is increasing ( remember gamma is 1/(1-(v/c)^2)^1/2 ), since v increases y also increases. the mass does not change, however it is somewhat easier to explain to people and easier to solve physics problems if you think of it as "relativistic mass" where you group y and m together so that y*m=relativistic mass. this can help make the problem more intuitive and mathematically works, the universe does act as if the object has more mass, like for instance is something with 1 gram of mass was moving at sqrt3/2 c then its "relativistic mass" would be 2 grams, if i were to apply an impulse 100 N*s on this object, the objects velocity relative to me would change as if it had 2 grams of mass instead of one and would speed up by half of what it would if the object was at rest with a mass of 1 gram. this is because when things are going faster relative to you, you need to put more energy into them to speed them up. simply put, it's inertia has increased but its mass has not. i hope this helped
@seeseefok7659
@seeseefok7659 4 жыл бұрын
I like how some of the people is following the trend of saying that this video is wrong and clickbait, it's not and not the way you mean it.
@udoberk6647
@udoberk6647 3 жыл бұрын
why cant i set the square of equation 1 equal to equation 2? i should get a logical answer when doing the algebra of that but I end up with = = -v^4/c^2 which is not a generally true statement. So the two equations arent really saying the same and they cant both mean the same Energy, right ?
@imabeapirate
@imabeapirate 6 жыл бұрын
That third equation tho... man that's some good stuff. you should have mentioned the momentum of the mentioned massless particle is inversely proportional to it's wavelength. that would have been icing on the cake.
@kshitijsharma759
@kshitijsharma759 5 жыл бұрын
The title should have been- "understanding the true meaning of E=MC^2" but what you did was clickbait
@jakethemistakeRulez
@jakethemistakeRulez 5 жыл бұрын
I wouldn't call it clickbait but a slight troll to get people to learn something. I have no problem with that.
@cezariuszreginia7724
@cezariuszreginia7724 5 жыл бұрын
@@jakethemistakeRulez positively charged troll lol
@iCore7Gaming
@iCore7Gaming 4 жыл бұрын
@@jakethemistakeRulez still its clickbait. People clicked this video thinking that he was talking about why it is wrong. Yet it isn't.
@WideCuriosity
@WideCuriosity 3 жыл бұрын
Since it is apparently only right in certain circumstances, and not the rest of the time, the title is valid rather than clickbait.
@gen2151
@gen2151 2 жыл бұрын
holy when i saw the thumbnail i first thought he was challenging Einstein to a math battle
@BattleCarrot
@BattleCarrot 3 жыл бұрын
How does the Gamma equation work if it factors in the relative velocity of the mass to the observer? If we use a car as an example, the driver of the car's relative velocity is 0 so E=mc^2. However, someone stood next to the road would observe the car moving at whatever speed, which would then mean that they would calculate E to be a different value. How does that work?
@pibroch
@pibroch 3 жыл бұрын
In Special Relativity the convention is that mass always refers to a stationary measurement relative to the object being measured. So the E in the non gamma equation always refers to the mass energy of the object - in other words the energy of the object at rest relative to the observer / measuring system.
@geetasingh7437
@geetasingh7437 6 жыл бұрын
From where did that equation come E^2=(pc)^2+(mc^2)^2
@geetasingh7437
@geetasingh7437 6 жыл бұрын
What math?? Can u tell me..
@AlcyonEldara
@AlcyonEldara 6 жыл бұрын
Pythagorus Theorem.
@ClodiusP
@ClodiusP 6 жыл бұрын
I believe it's one of Einstein's
@m_ahtisham
@m_ahtisham 6 жыл бұрын
Minute physics
@SloeJuice
@SloeJuice 6 жыл бұрын
Compton Scaterring
@patricialauriello3805
@patricialauriello3805 5 жыл бұрын
for those of us that are not scientist thank you Dr Lincoln. You make science interesting and not intimidating.
@tonyle1765
@tonyle1765 5 жыл бұрын
Patricia Lauriello this is physics
@patricialauriello3805
@patricialauriello3805 5 жыл бұрын
Tony Le and your point is?
@thomasipad7719
@thomasipad7719 4 жыл бұрын
The links to the related videos do not work, they are no links! And, at least on my iPad, i also cannot copy them at all.
@tomkolo8115
@tomkolo8115 4 жыл бұрын
I respect U Dr. Lincoln, but could u plz clarify at time 3:00...gamma increases to infinity and mass to zero..and this gives U c times c? why not 2+2 for example, or 3.999999.... tell me
@fwily2580
@fwily2580 5 жыл бұрын
A strange combination of a grade school and college level teacher.
@SuperUghe
@SuperUghe 4 жыл бұрын
A rarity when one can describe such complex physical concepts in a manner understandable by grade school level minds. All college professors should be able to portray this level of understanding to students however most of them simply lazily point you to the math with very basic explanations of it instead of relating the math to physical properties in an intuitive way.
@elnuraliyev6603
@elnuraliyev6603 6 жыл бұрын
Insightful video! Thank you very much!
@factsheet4930
@factsheet4930 6 жыл бұрын
How did you comment that 6 days ago?
@bonniedean9495
@bonniedean9495 6 жыл бұрын
How could you comment 6 days ago if the video was uploaded yesterday?
@charlesbrightman4237
@charlesbrightman4237 6 жыл бұрын
Space Time Inter-dimensional Travel, "STIT".
@RalphDratman
@RalphDratman 6 жыл бұрын
Coincidence? I think not!
@nielschristoffers8492
@nielschristoffers8492 6 жыл бұрын
In his inertial system uploading of the comment and the video happened simultaneously. He is traveling in a very fast space-ship.
@Aman-br1ph
@Aman-br1ph 4 жыл бұрын
Please tell me what is the process to learn your language in a certain time?plzzzz tell
@wikopl
@wikopl Жыл бұрын
If E=pc for a photon, how to we get (calculate) p, which depends on m or not?
@narfwhals7843
@narfwhals7843 Жыл бұрын
We can either know the energy to get p=E/c or find the momentum from p=h/lambda where h is planck's constant and lambda is the wavelengths of the photon. This also directly relates it to E=hv, where v is the frequency. Since c=v*lambda and c/lambda=v we get E=h*(c/lambda)=hv.
@mysterymeat586
@mysterymeat586 5 жыл бұрын
I see some accusations of "clickbait". Really? All I need to see is Fermilab and Don's face for me to click. Good show Don.
@And3aPet
@And3aPet 4 жыл бұрын
Exactly what I thought. I watch semi regularly and always enjoy his explanations and enthusiasm - and his t-shirts, too.
@sunderamsebusiness9773
@sunderamsebusiness9773 6 жыл бұрын
Hi Don, Scientist sayProtons travel at the speedo flight and have no Mass. Then where from they get the energy to travel so fast.
@youvegottobekiddingme4952
@youvegottobekiddingme4952 5 жыл бұрын
Because photons are not true particles. They are a small packet, so to speak, of energy. A wave manifestation of electro-magnetic force.
@EebstertheGreat
@EebstertheGreat 5 жыл бұрын
Photons, not protons. Photons are massless particles. Their energy comes from the process creating them, like all other particles. You might as well ask where electrons get their energy from to stand still. After all, they have mass, and therefore they have energy. Howard, photons are particles in the same way as every other elementary particle is a particle.
@asimsajjad101
@asimsajjad101 3 жыл бұрын
what does it means actually that mc2 is the energy at rest,how can we get this energy from a body at rest? can we use this energy or not? please clearify. thanks in advance
@user-dialectic-scietist1
@user-dialectic-scietist1 3 жыл бұрын
Don this is the best educational video I ever saw about mass, movement, and energy. I have a question. Are these equations applicable the same way for rotating movement as and for the revolution orbital linear movement? Also, do we separated in this case, the kinetic energy of the dynamic energy or the E here is the sum of both?
@sontubanerjee9949
@sontubanerjee9949 5 жыл бұрын
The title of the video gave me heart attack.
@nahulseyon54
@nahulseyon54 3 жыл бұрын
😂😅😆 I died a sec.
6 жыл бұрын
moving? :) in relation to what?
@scottsmith6658
@scottsmith6658 6 жыл бұрын
In relation to you, the person doing the measuring. If someone else was doing the measuring, and they were in a different reference frame, they'll get a different answer.
@mattjmwmatt
@mattjmwmatt 6 жыл бұрын
to the point of reference. that's the whole point of relativity theory.
@joshua43214
@joshua43214 6 жыл бұрын
I agree, the universe is actually split into me and everything else.
@ianpilcher3589
@ianpilcher3589 6 жыл бұрын
That’s the relativity part Pasca
@Fromatic
@Fromatic 6 жыл бұрын
I dont think it matters even if you were spread over 10 miles, the point is that the thing is not moving relative to you, assuming of course you are not somehow moving relative to yourself and therefore the thing being measured
@nobody-ze2ih
@nobody-ze2ih 3 жыл бұрын
Your eqution can used instead of E=pc.and used for all cases. you are genius
@tomkolo8115
@tomkolo8115 4 жыл бұрын
at 4:00 U mentioned "p" as momentum, which is from Newtonian's mechanics formula -> mass x speed..however mass increases with velocity, so where is the gamma here? are we going back in time to Sir Isaac Newton...plz clarify
How can a photon have momentum?
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