Neil deGrasse Tyson Explains The Equivalence Principle

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StarTalk

StarTalk

Күн бұрын

Does being in space mean there is no gravity? Neil deGrasse Tyson and comedian Chuck Nice explore gravity, acceleration, and Einstein’s equivalence principle. Are astronauts always floating when they’re in space?
What does it mean to escape Earth's gravitational pull? Find out what 0 G really is as we explore the concept of weightlessness. What is a translunar injection? We discuss Lagrange points, The Expanse, Ad Astra, and transitioning between objects’ gravitational pulls. Can a person on a rocket tell between 1G of gravity and 1G of acceleration? Plus, is microgravity actually a misnomer?
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About StarTalk:
Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
#StarTalk #NeildeGrasseTyson
00:00 - What does it mean to be weightless?
04:48 - Acceleration v. Gravity
07:00 - Floating in Space
09:30 - Testing The Equivalence Principle
13:33 - “Micro Gravity” & Escaping Earth’s Pull
15:10 - More Equivalence Principle

Пікірлер: 841
@StarTalk
@StarTalk Жыл бұрын
See if you can get the equivalence principle experiment to work at home. What happens?
@jarnailsinghbhullar417
@jarnailsinghbhullar417 Жыл бұрын
Mama Earth says, " *come back FU..KER* "..😂😂!!
@Earnest.M
@Earnest.M Жыл бұрын
fell. towards earth
@North_Lights
@North_Lights 11 ай бұрын
Neil, talking about misnomer, I can argue zero gravity is also a misnomer. Because it is equivalencies principle and relativity after all. You never in zero gravity, the gravitational force of earth is equally opposed by the acceleration of your space vehicle or body towards and around the earth, thus you feel this apparent zero gravity in the orbit. And by the way, you don't need to go to space for that, you can feel that in the same 737 if it accelerates equally but opposite to earth gravitational force. Oh, you can say floating on water is no different, the gravitational force of the earth is opposed by the water surface tension if you are those tiny insects, or buoyant force, which is nothing but water molecules rush towards all direction. You may argue, floating on water is just like standing on land, Duh, the land is equally oppose you with same force. After all it is relativity you know. My point is, you are playing with words and accusing others of ignorant. What you are doing is called, logomachy.
@chantelecarpenter7768
@chantelecarpenter7768 11 ай бұрын
Who you talkin' bout. Haha
@inertiaforce7846
@inertiaforce7846 10 ай бұрын
Please make a video explaining why free fall is the only state that's inertial, and therefore that standing on the earth is a state of acceleration.
@michaelccopelandsr7120
@michaelccopelandsr7120 Жыл бұрын
Neil and Chuck for 2024
@st.peterunner8758
@st.peterunner8758 Жыл бұрын
If only that was possible. We’re stuck with octogenarian white dudes
@HaroldKuilman
@HaroldKuilman Жыл бұрын
Just Neil please 😅 🙏
@vinnybrich484
@vinnybrich484 Жыл бұрын
Nah I want Chuck and Neil
@linyenchin6773
@linyenchin6773 Жыл бұрын
​@@HaroldKuilmanChuck is superior as a Human as he is more intelligent than intellectual aka worthless. Tyson is sometimes too intellectual to realize he isn't being Human but combative and vindictive like mama.
@FracturedReality
@FracturedReality Жыл бұрын
They both work together well their pleasing the nerds and average Joe, I still find myself not worthy of being in their presence 😁
@Hemzees
@Hemzees Жыл бұрын
I love how science just makes these two happy. Chuck is especially brilliant but then most comedians actually are.
@davidmudry5622
@davidmudry5622 8 ай бұрын
What kind of a liquid would you put in a big gulp cup that wouldn't make a mess..?
@jeffs6090
@jeffs6090 Жыл бұрын
Thank you for finally mentioning The Expanse. It's such an amazing show that actually got a lot of the science correct. Obviously some things were embellished for drama and artistic reasons, but many things were spot on. Especially their ship designs in order to generate artificial gravity when the engines are on. Half way to their destination, the ship would flip so the rockets were then slowing them down while still generating gravity. Good on Chuck for mentioning that at the end! They should definitely do an explainer about the show and all its science. First, though, Neil needs to watch all the seasons!! Beltalowda!
@diegofernandez4789
@diegofernandez4789 Жыл бұрын
Remember that guy Epstein dying from the acceleration of his own invention? The Expanse did a lot of things right. Damn I miss that series.
@cleanthe3276
@cleanthe3276 Жыл бұрын
@@diegofernandez4789 The longest funerals ever ! :)
@michaelharris680
@michaelharris680 Жыл бұрын
Beltalowda❤
@kendrick_ukc
@kendrick_ukc 10 ай бұрын
​​@@michaelharris680❤ milowda inyolawda
@davidmudry5622
@davidmudry5622 8 ай бұрын
What kind of a liquid would you put in a big gulp cup that wouldn't make a mess..?
@Jager-er4vc
@Jager-er4vc Жыл бұрын
I love Chuck for his comedy and the fact that he is WAY smarter then he lets on.
@joshuagharis9017
@joshuagharis9017 Жыл бұрын
Chuck is definitely intelligent 👌, he's curious too 😊
@quinnjackson731
@quinnjackson731 Жыл бұрын
True. He's the class clown that the teacher wouldn't mind having.
@mjdurham8
@mjdurham8 Жыл бұрын
my thoughts exactly
@Capt.Alron.D
@Capt.Alron.D Жыл бұрын
Being funny requires a person to be intelligent. We take comedians to be silly at times but they are the ones outsmarting us and thinking of something mostly spontaneously, which makes us giggle!
@erinncarl9294
@erinncarl9294 Жыл бұрын
​@@Capt.Alron.DAbsolutely!!
@PerfectChaos7
@PerfectChaos7 Жыл бұрын
I'm glad they gave another shout out to The Expanse. An amazing story, and even better for science lovers. I've seen all 6 seasons in continuum 5 times now and also read all 9 books, and planning to re-read them soon.
@Loan--Wolf
@Loan--Wolf Жыл бұрын
when i get the funds i plan to get them i loved the show and want way more lol
@user-et1ht9fx2k
@user-et1ht9fx2k Жыл бұрын
You guys always manage to put a smile on my face even when times are tough. And I learn something too. Thanks for that.👍
@StarTalk
@StarTalk Жыл бұрын
That's everything we strive for, thanks for your feedback :)
@michael-4k4000
@michael-4k4000 10 ай бұрын
A put some pudding in my belly 😋
@davidmudry5622
@davidmudry5622 8 ай бұрын
@@StarTalk What kind of a liquid would you put in a big gulp cup that wouldn't make a mess..?
@georgedeedsnotwords2162
@georgedeedsnotwords2162 Жыл бұрын
I wish I could have gotten teachers like them back in school . The passion and fun , I might have even liked being there and learning .
@evrettej
@evrettej Жыл бұрын
Right!!!! I would have loved science class if Neil was our teacher or professor
@DrDeuteron
@DrDeuteron Жыл бұрын
if you need a good teacher to love science, than you really only like science.
@sicfxmusic
@sicfxmusic Жыл бұрын
You're asking scientists to be your teachers, ain't nobody got time for that😂
@tonyping3159
@tonyping3159 Жыл бұрын
For sure. They would have the struggling students excited to learn and pass their tests.
@georgedeedsnotwords2162
@georgedeedsnotwords2162 Жыл бұрын
@@tonyping3159 their enthusiasm would show through and spark interest in young minds . The teachers I had were to obvious that it was a paycheck and they didn't care about only one student at a time . The richest family or smartest student . Wouldn't waist there time to help a struggling or poor sole , nothing in it for them .
@TamTran-vw7zm
@TamTran-vw7zm Жыл бұрын
Thanks, guys, for letting me relive my college physics class (looong time ago). I love your shows, and the pure joy of learning you show, and then give to me!
@Loan--Wolf
@Loan--Wolf Жыл бұрын
Niel looks like he gets angry when he is teaching lol
@StarTalk
@StarTalk Жыл бұрын
Never lose your interest in physics!
@TorQueMoD
@TorQueMoD Жыл бұрын
This video and your Achieving Orbit video are literally mind-blowing! Love this channel! Thanks Neil and Chuck!
@sherrynight
@sherrynight Жыл бұрын
We should make StarTalk mandatory in all schools, teaching curriculum, and in the education system! 💛✨
@wrestlenewsnetwork5564
@wrestlenewsnetwork5564 Жыл бұрын
Shhhh.... you'll upset the Christians.
@JamesCAlien
@JamesCAlien Жыл бұрын
50% ?
@gazzam3172
@gazzam3172 Жыл бұрын
@@wrestlenewsnetwork5564 do we have any Lions?
@toddfraser3353
@toddfraser3353 Жыл бұрын
Now to get the kids to listen. I had pleanty of good teachers, but a lot of the classes, I was focused on the cute girls in the seats in front of me. Or I could be distracted in my own mind, on how I am going to make it through Gym class the next period. Or trying to impress other peers on what I think at the time makes me special. School Age kids are not fully developed mentally, and while they do learn a lot, it does take more effort to teach them, because their are a lot more on their minds than that engaging Physics class.
@wrestlenewsnetwork5564
@wrestlenewsnetwork5564 Жыл бұрын
@@gazzam3172 Well we dnt want another "crusade". RELEASE THE LIONS!!!!
@grapy83
@grapy83 Жыл бұрын
A very good episode! Now I imagine people will enjoy even more the effects shown in The Expanse TV series.
@BRIDGETTWC
@BRIDGETTWC Жыл бұрын
Thanks for uploading this video guys❤
@martinntuwa
@martinntuwa Жыл бұрын
I love that The Expanse is recognized. It's the best space novellas I've ever seen and read.
@YouTuber-mc2el
@YouTuber-mc2el 3 сағат бұрын
For the longest time I never understood the basic fundamentals of gravity because I took Cronkite's narration as gospel. It never made sense to me way back then and only until a couple of years ago I did a deep dive into gravity and boy what a rabbit hole that was. I learned an immense amount on not just gravity but a lot of collateral info along the way. It literally has changed how I look at things in my everyday life now.
@gtbkts
@gtbkts Жыл бұрын
Thanks for the awesome content and great video!!
@thewinddb
@thewinddb Жыл бұрын
Neil gets so amped up talking about physics. I enjoy that.
@zero11010
@zero11010 Жыл бұрын
Just a fun fact for the Expanse. Most of the characters you see are from the belt where they have very low gravity. They use earth’s gravity as a form of torture on these people in a scene (the weight of their body harming itself after NEVER experiencing that much gravity). This means the acceleration and the deceleration they use (the main characters who are largely from lower gravity places) is a much lower rate than what would be 1G for us. Which would also mean earth’s fleet can accelerate and decelerate with more force shortening their travel times (assuming they can afford the additional fuel).
@tagmaster9522
@tagmaster9522 Жыл бұрын
The Martians train in 1G so they could do it as well.
@DJRCMACH
@DJRCMACH Жыл бұрын
Spot on and it's also shown in physical strength differences between troops loved the expanse for getting so many things right
@Cbricklyne
@Cbricklyne Жыл бұрын
@@tagmaster9522 Correction : Martian MARINES train in 1g. Normal Martians don't, and wouldn't be able to stand 1g for very long. Even Martians in the Martian Navy but who are not Marines (like Bobby and her unit) but who pilot and crew the MCRN ships wouldn't be able to stand 1g - and even the Marines themselves like Bobby wouldn't be able to stand it for very long either. The show didn't show this scene (obviously they couldn't because it was mostly inner dialogue) but when Bobby was brought to Earth to testify about the Ganymede incident, and when she first landed and experienced Earth's gravity for the first time, it was then that it hit her that all that training they had been doing at 1g for a possible attack on Earth was useless since they would never have been able to last in a combat situation for very long in 1g even with all the training they had. Training in 1g and LIVING, BREATHING and existing in 1g and two completely different things, as she learned from her time on Earth. Earthers don't train in 1g - the LIVE in 1g, so they don't notice it or have to adjust to it. (P.S. - one detail they did get correct on the show as a neat kind of Easter egg sort of thing was during the panel on Earth when Bobby was testifying, in the second session in the afternoon (which Chrisjen had cleverly and intentionally planned to have them split that way), all the Martians in the Martian delegation were sat on the chairs all slumped back and exhausted from having been in Earth 1g for longer than they're used to. It gave the Earther's a home-field advantage from not having to negotiate with the Martians during the negotiation session from a position of (literal) weakness and exhaustion like the Martians had to. The show shows all the Martians sitting slumped back and looking drained on their chairs and I thought that was so so great that they did that)
@andreikivorsky1726
@andreikivorsky1726 Жыл бұрын
@@Cbricklyne damn I never realized that to be the case. I thought they sat like that on 2nd session was because they had a huge lunch lol.
@tagmaster9522
@tagmaster9522 Жыл бұрын
It's not just the Marines. It was all personnel who went off world. That way Earth wouldn't have an advantage in speed or if Mars invaded. Also, service was compulsory, so every Martian served at some point and all of them had the training. When Bobby went to Earth she was disoriented due to actual gravity in conjunction with everything else ie vertigo, (the same reason people get sea sick. Your eyes and ears are telling you different things) You can trian for weight but not for the sensory overload. The reason she was able to adjust was the homeless guy she gave the meds to. A big difference is, in training, the pull stops when the training does. On a planet, it doesn't. Chrisy said the gravity of earth isn't like training. It's an oppressive force, the weight of the world pulling you down.
@su_shadow9326
@su_shadow9326 Жыл бұрын
I love Mr. Tyson's enthusiasm, it makes learning fun. Teachers, take note.
@73mordka
@73mordka 11 ай бұрын
Oh, what an amazing explanation on acceleration unit. With every second your speed increases by the value of acceleration. It's beautiful, because it's so simple ❤❤❤
@talbuky
@talbuky Жыл бұрын
Oh this explainer opened a huge question for me, if accelerating at 1G for a few months would take us to a significant fraction of the speed of light, what is stopping us from sending a probe to proxima centauri for example. Is it that the amount of fuel needed to give even a light craft such acceleration is simply too much?
@carlosbuitragoZ
@carlosbuitragoZ Жыл бұрын
Finally, you guys addressed The Expanse as "for real physics" TV show.
@user-ue4ne7no8h
@user-ue4ne7no8h 11 ай бұрын
I love Startalk 🖤 Neil and Chuck, you're doing amazing work. I love you guys.
@pranaydoshi6145
@pranaydoshi6145 Жыл бұрын
Wow...what an informative and fun episode as always...Lots of love and respect from India...
@KaleOrton
@KaleOrton 11 ай бұрын
Brilliant episode! Loved it. ❤
@davidbogard229
@davidbogard229 Жыл бұрын
This is great, just like all your videos are. Can you explain to us in your ingenious format how a compass behaves in orbit and in deep space?
@bas919
@bas919 Жыл бұрын
Big hope that _The Expanse_ gets more seasons and finish the book. It's the most realistic space series ever.
@geronimomartinez1469
@geronimomartinez1469 Жыл бұрын
I can watch Neil and Chuck videos over and over … the most rewarding experience!! I wish we can have some politicians with 10% of these guys knowledge and common sense … we’ll be great again !🖖
@dgonsoulin
@dgonsoulin Жыл бұрын
Fantastic! Feed my brain!! ❤ Thanks, Neil and Chuck!
@patticampana9458
@patticampana9458 11 ай бұрын
Learning so much! Respect to both of you!✌️
@bridgetmulvenna3965
@bridgetmulvenna3965 Жыл бұрын
Love StarTalk so much!
@jasonvangeuns9062
@jasonvangeuns9062 11 ай бұрын
That was awesome. So easily explained very interesting. And yeah the tv series The Expanse also a favorite of mine.
@vlatkopetrucci
@vlatkopetrucci Жыл бұрын
Dear Dr. Neil deGrasse Tyson, I LOVEEE to hear and talk about science and space, appreciate everything that YOU and your hosts do! Wondering about misleading microgravity, just maybe NASA thinks about microgravity as the condition the body is in - "0" G, but when the body acts on it self with its own gravity? Like a water drop, every time its in "0" G forms a sphere, because of its own mass and gravity acting on its self (e.g. microgravity) ;) am I right?
@engineer1able
@engineer1able Жыл бұрын
Water droplets become round in "0" G not due to own microgravity but due to water molecules attracting each other through electric charges within the molecules. That is how most substances on human size scales stay together. Gravity is much too weak of a force to attract small masses compared to electromagnetic forces. Gravity is about 20 orders of magnitude weaker than electromagnetic forces. Gravity only becomes significant when there are huge masses involved.
@brentjohnson415
@brentjohnson415 Жыл бұрын
i love watching chuck get stoked about science. gets me pumped. thank you my man!
@mglenadel
@mglenadel Жыл бұрын
About decelerating towards a planet, there's a short story (by Arthur C. Clarke, if I recall correctly) about a space bicycle race (small lightweight ships propelled by ion drives powered by a human pedaling inside) in which, at the end of the stage (like a Tour de France kind of deal) the craft couldn't stop at the end with a force greater than x (like a bumper with a force gauge inside the airlock of the 'regatta' tender) or the competitor would be disqualified. Part of the strategy was how soon or late to flip around to commence breaking, and consequentially how hard would one need to pedal to achieve it without a penalty.
@aslansm
@aslansm 11 ай бұрын
The Expanse is so great because they represent stuff like acceleration, gravity and deceleration so realistically. Great references to the show. Thank you guys!
@danielmadar9938
@danielmadar9938 Жыл бұрын
You guys always put a smile on my face 😂
@Tormentadeplomo
@Tormentadeplomo Жыл бұрын
This is a great show. Thank you guys.
@LennyDucano
@LennyDucano 9 ай бұрын
This was another amazing one y’all!!! Thanks for the information 🙌🙃
@dylanroberts1752
@dylanroberts1752 Жыл бұрын
I can't stop the video until I hear Neil say, "keep looking up". ❤😊
@juliam7056
@juliam7056 Жыл бұрын
Cool episode , you guys are the BEST !!!
@brandon-gr7yq
@brandon-gr7yq Жыл бұрын
Thank you guys for all you do!
@afronasty2000
@afronasty2000 Жыл бұрын
Chuck needs so many more props from Neil. Chuck is doing great call backs with the La Grange Point reference.
@DrDeuteron
@DrDeuteron Жыл бұрын
He's come a long way since "World's Dumbest".
@820hurleyj
@820hurleyj Жыл бұрын
Love your guy's explanations!
@ADergal96
@ADergal96 Жыл бұрын
Amazing video! Thank you so much!
@meridien52681
@meridien52681 Жыл бұрын
OMG "The Expanse" was so, so, SO good! I was sorry to see it finish.
@gustavofigueiredo1798
@gustavofigueiredo1798 Жыл бұрын
Very interesting stuff, thanks guys!
@riftvideos1203
@riftvideos1203 Жыл бұрын
6:45ish I thought we used G as a term express equivalency to earth gravity for the difference in inertia in relation to two objects. ie in a fighter jet, you experience at 4g your 150lb body as if your 600lb, but you aren't being pulled toward the plane's mass. the plane is just adding to your inertia in a particular direction. if the plane had a gravitational effect on you then in a negative 4g maneuver the same person would have an outsized pull of the plane toward your mass. your body is not pulling that plane toward it, the plane is increasing the difference in inertia as the heavy plane radically alters your inertial vector dragging you along.
@BonBonBonni
@BonBonBonni 11 ай бұрын
I love you guys! So informative and funny 😂
@naveen__1992
@naveen__1992 Жыл бұрын
Thanks for initiative
@ridakos9476
@ridakos9476 Жыл бұрын
Hey Neil and Chuck I just wanted to find a way to thank u guys for opening my mind agian I would love to look at stars and galaxy nebulas but I live in Wisconsin how would I go about doing it
@winchesterbear
@winchesterbear Жыл бұрын
A coordinate system in free fall can be made small enough that, relative to itself, the gravitational field around its origin is basically Minkowskian. That is, the 16 components of the gravity field/tensor are not functions of space-time, and objects will resist any acceleration. This is also called an Inertial System. In general, the gravity tensor field is a function of space-time; therefore, gravity has a gradient, and the force of gravity will hold objects in their predicted geodesic motion, which generally is accelerated motion, usually with only a radial component. The tangential resistance to change its geodesic is traditionally thought of as its "mass." The resistance to change its radial acceleration is traditionally thought of as its "weight."
@R0bobb1e
@R0bobb1e Жыл бұрын
From your reference point, it is zero G, but from any other point of reference, you have a non-zero acceleration. If you were on the ISS, would you eventually hit the front of it if you were floating in the middle, due to the frictional deceleration cause by atmospheric drag?
@LocalFiveGuy
@LocalFiveGuy Жыл бұрын
I am a professional Elevator Mechanic. And, I feel like Neil Degrasse Tyson should know that the Elevator is the safest form of public transportation. Elevators have Safety devices all over the place. 😊If an elevator falls, it doesn't fall far before the safeties grab the rails.
@nHans
@nHans Жыл бұрын
Yeah, he knows that. In previous videos, mentions have been made of Otis' invention of the safety elevator in 1853 etc. However, as a scientist, whenever Neil mentions an elevator, he always means an "ideal" elevator, not a real one. To him, an ideal elevator is one that is suspended solely by a cable above a hollow elevator shaft. And as soon as the cable is cut, it starts falling straight down, unobstructed, friction-free, and unaffected by air resistance. Einstein (1879-1955) too visualized an elevator the same way. Not quite what you and I would call an ideal elevator-but this is Neil's channel, so we have to abide by his definition.
@Miner3dBurns
@Miner3dBurns Жыл бұрын
Great video, and very entertaining :)
@byronwatkins2565
@byronwatkins2565 Жыл бұрын
"g" is acceleration. More specifically, "g" is acceleration due to explicit force(s). A car in a sharp turn exerts an explicit force on the occupants. A rocket after liftoff exerts an explicit force to lift astronauts into space. Gravity is everywhere -- it is called "Netwon's universal law of gravitation" for good reason. But, if other explicit forces are absent, then the resulting "free fall" (due to gravitational forces only) is perceived identically to an absence of forces. However, the gravitational force has spherical symmetry. Each mass creates spherical shells around itself wherein all other masses get accelerated toward that mass. These spherical shells are different from a rocket engine's acceleration in one small respect: these spherical shells result in "tidal forces" -- closer objects have higher acceleration and the acceleration vectors are not parallel. In fact, these tidal forces (and small orbit corrections) are what NASA calls "microgravity." "If you accelerate at 1 g for ten months" -- in whose frame of reference? It is not possible for mass to reach the speed of light. Viewed from earth, the ship would become more and more sluggish. At first, only very precise measurements would note the decreased acceleration. But above 0.9 c, the observed acceleration gets closer and closer to zero despite the occupants of the ship 'feeling' the same 1 g acceleration as from the beginning. Contrarily, if you tried to accelerate the ship so that viewers on earth observed a constant 1 g acceleration, then the occupants of the ship would experience higher and higher "upward" force. Eventually, this force would crush them and the ship.
@thedullohanvids
@thedullohanvids Жыл бұрын
This video just reminded me of something I wondered about as a kid on the school bus. if you throw a paper airplane on a bus is there a point were it will actually go backwards instead of forward? I assume there must be, but was never able to figure it out on my own.
@davidgould9431
@davidgould9431 Жыл бұрын
Assuming the bus is moving at constant velocity: no, because the paper airplane has that speed, in addition to the speed you give it when you throw it. It's why things you drop on a bus or train go straight down and not towards the back of the vehicle.
@mitrayusinha9810
@mitrayusinha9810 Жыл бұрын
Plz make videos on gravity for our better understanding. My request to you sir.
@KatoOnTheTrack1
@KatoOnTheTrack1 Жыл бұрын
Chuck impressed me pulling up the Lagrange point 😂😂
@dafyd201
@dafyd201 Жыл бұрын
Listening to this reminded me so much of Maneuver Drives in the old GWD Traveller role-playing game. Wonder if Neil ever played.
@MrTnbopp123
@MrTnbopp123 Жыл бұрын
Another excellent video
@-chrislopezskate-5175
@-chrislopezskate-5175 Жыл бұрын
Gotta love the humor they put in with this info 👏🏽😂
@Blackrhyme7
@Blackrhyme7 Жыл бұрын
Loved the expanse show, one of the most science accurate show based in space. Pity it ended with 3 books not filmed
@MrBernardthecow
@MrBernardthecow Жыл бұрын
Chuck is awesome! Thanks for this channel.
@kinotikimathi9106
@kinotikimathi9106 Жыл бұрын
I already knew this but i'll listen to Chucks version anyday
@PantherBlue001
@PantherBlue001 Жыл бұрын
Great show, gentlemen! I’ve learned so much from your videos!
@michaelmeier3445
@michaelmeier3445 Жыл бұрын
Why so much hate for the term "microgravity"? In my understanding this is supposed to indicate that gravity (or perceived gravity) is never exactly zero. Gravitational pull is slightly different over every point over Earth due to minute differences in density. This should cause small tidal effects. At the altitude of the ISS there is also still noticeable atmospheric drag. Likewise, photons from the sun and other sources constantly push against your spacecraft, causing ever so slight acceleration. I think "microgravity" captures this reality well, and it is easier to say than "forallpracticalpurposeszerogravity".
@dawnhansen7886
@dawnhansen7886 Жыл бұрын
I Love these guys ❤ I LOVE STARTALK ❤ SERIOUSLY
@rooyajabarkhil5260
@rooyajabarkhil5260 4 ай бұрын
This was a great episode, thanks!
@jeffsiegwart
@jeffsiegwart Жыл бұрын
Great Stuff!
@ksscientistorrapper9919
@ksscientistorrapper9919 Жыл бұрын
Love this show man!
@jmanj3917
@jmanj3917 Жыл бұрын
16:50 A good rule of thumb, Lord Nice, is, "Add about ten meters per second, for every second it's (you're) falling".
@Articulate99
@Articulate99 Жыл бұрын
Always interesting, thanks.
@randomlegend631
@randomlegend631 Жыл бұрын
15:30 i have literally been wondering this for the longest time
@edwardallenthree
@edwardallenthree Жыл бұрын
I'd love to hear more talk about the "artificial gravity" on the expanse that is created by centrifical force. It's been a while since I saw the show, I only watched the first season, but I recall like water flowing in a spiral when being poured out in those environments. Love to hear more about that.
@linyenchin6773
@linyenchin6773 Жыл бұрын
*generated, not "created" aka "instantly manifested from nothing." Generation is a pricess, a thing if cause and effect or "causality" if you prefer putrid and gaudy terms of intellectuals.
@Ketraar
@Ketraar Жыл бұрын
That scene with the water pouring is because they are on Ceres and they artificially spin it to create gravity. Dr Becky explains this in one of her videos here -> kzfaq.info/get/bejne/hZhlYMKWqsrckas.html
@edwardallenthree
@edwardallenthree Жыл бұрын
@@linyenchin6773 god created centrifical force! /S
@fredbohm4728
@fredbohm4728 Жыл бұрын
@@edwardallenthree There is no evidence for the existence of any god.
@edwardallenthree
@edwardallenthree Жыл бұрын
@@fredbohm4728 bless you, the slash ess means sarcasm.
@brettschipper2250
@brettschipper2250 Жыл бұрын
Amazing content and presentation. I wish Niel would have been my calculus teacher.
@HTphyzycs
@HTphyzycs Жыл бұрын
Would love to see you on the expanse podcast, ty and that guy!
@VoltisArt
@VoltisArt 11 ай бұрын
Came about 40 seconds away from posting a really frustrated comment about the absence of the idea of deceleration or negative acceleration. Almost 18 minutes without it. Saved it at the end guys, lol. Deceleration is _half_ the work of any space travel that doesn't end in a crash, so it's not to be ignored.
@phenixorbitall3917
@phenixorbitall3917 Жыл бұрын
I think Chuck has become a physicist too and THAT'S really cool :)👍 Basically; each time we jump into a swimming pool, we are in zero G until we hit the surface. Fine for explaining this thing with micro gravity - I've always hate this term.
@israelrojas5541
@israelrojas5541 Жыл бұрын
I love this podcast so much man
@hombreleon
@hombreleon Жыл бұрын
I clicked the Like button as soon as Chuck mentioned the Lagrange point 😂✨
@ToneX-hj6ki
@ToneX-hj6ki 11 ай бұрын
I really like the possibility of being inside of a black hole since it answered all the questions we know about black holes it was like a puzzle piece that fit in perfectly.
@harryjpotter6048
@harryjpotter6048 Жыл бұрын
I love you guys ❤thanks for your videos
@user-of5lw4oy3c
@user-of5lw4oy3c 27 күн бұрын
Very informative.
@timd7709
@timd7709 Жыл бұрын
Would the big gulp trick work while in an accellerating rocket? It seems to not do anything until it hits the floor right? So the equivalence principle would be broken as you can see that you are in space due to this?
@jamesreynolds4152
@jamesreynolds4152 Жыл бұрын
Could you do an episode on free fall tunnel travel on Earth? I understand if there is a "tunnel" from one city to another city whereby you fall into the tunnel you will arrive at the terminal city in 22 minutes. Of course, all these tunnels would have to be curved starting toward the center of the Earth, curving toward the exit and arriving at a 90-degree angle at the exit.
@Morpheux1
@Morpheux1 Жыл бұрын
They did, 2 or 3 years ago. Let me try and find it. I think the time is 42 minutes no matter where you go.
@Morpheux1
@Morpheux1 Жыл бұрын
kzfaq.info/get/bejne/obVnf5h6tdSWcqM.html There you go
@mekalkasias6571
@mekalkasias6571 Жыл бұрын
Always wondered about that. Orbit is basically free fall but if your in intergalactic space void , with rocket perpulsiion top down left right to try n keep u static. Do u still experience weightlessness?
@brandonsmith1838
@brandonsmith1838 Жыл бұрын
Make a explainer on why you can't just accelerate for 10 months to reach the speed of light while you just experience 1g the whole time. At what point does it go wrong.
@AnantMall
@AnantMall Жыл бұрын
great question! wondered the same!
@saeedg2972
@saeedg2972 Жыл бұрын
Thanks much for another wonderful explainer. I do have a question for Mr Tyson. When JWST wants to look at the "very early galaxies", shouldn't they be more than 13.5 billion light years away, due to inflation "and stuff!!"? Which I guess makes it impossible to do?
@jpdemer5
@jpdemer5 Жыл бұрын
That's where they are _now,_ but what we see is the light that left them billions of years ago. That's why we can see all the way back to the cosmic microwave background, even though it's rushing away from us at the speed of light (and has been doing so for 14 billion years.)
@JohnDoe-sy6tt
@JohnDoe-sy6tt Жыл бұрын
These Brothers are great together!
@Temple.Of.Osiris
@Temple.Of.Osiris Жыл бұрын
I love when chuck is listening to Neil; and he repeats what he’s saying 0.00002 seconds after Neil says it. like he knew this info already and they said it at the same time!😭
@tedsaleh6854
@tedsaleh6854 Жыл бұрын
You always like to critique movies would really like to see one on The Expanse!
@waynegosson1793
@waynegosson1793 Жыл бұрын
This show turns a frown upside down. Each and every time. Thanks 😊 again !!
@ryiro9611
@ryiro9611 Жыл бұрын
I think when they refer to microgravity its because gravity at surface of the earth is ~9.8 but as you go above (or below) the surface the gravity keeps reducing(in different factors)....So if you're in an object that is long enough....say 100m tall, the gravity at the two ends of that object will be slightly different.....and when you go further away from the Earth, that difference can be significant....especilly in the orbital zone....for instance an object that is 100m long orbiting the earth 2000 km away from the surface will have a 1% gravity difference(from earth) between its two ends that are facting towards and away from earth
@DrDeuteron
@DrDeuteron Жыл бұрын
search "SRTM torque rotation"
@bonibroco1076
@bonibroco1076 Жыл бұрын
15:30 I did the math. It will take 353 days 19 hours and 53 mins to attain light speed accelerating at 1g
@talbuky
@talbuky Жыл бұрын
Would you know how to calculate the amount of fuel per kg needed to maintain that acceleration?
@ashishawasthi4350
@ashishawasthi4350 10 ай бұрын
These guys are just rocking I teach physics and love this show so much … Initially I thought Chuk was just irritating and obstructing the flow … but guess what … I was wrong … he is an awesome comedian with perfect timings … and also seems to be very smart ….I can’t watch this show without Chuk now …
@leonarddenure4756
@leonarddenure4756 Жыл бұрын
I love you guys! Does that mean escape velocity is 32ft/sec. squared by x distance until some tangent and vector equal a golden ratio?? I never got to calculus.
@dumbrobot6003
@dumbrobot6003 Жыл бұрын
Watching this from the remote village of worn torn country Afghanistan. I watch your videos everyday Dr. Neil and learning from you. There is no school nearby so, I am learning from your videos 😀😀
@larrydelgrossojr4429
@larrydelgrossojr4429 Жыл бұрын
Hi Mr. Tyson. I noticed in this video that you have a framed picture of the elemental spectrum behind you. I'm no physicist, so I was wondering, what kind of elements is the picture showing?
@rodwynrhind5573
@rodwynrhind5573 Жыл бұрын
Now that was a really interesting chat that kept me listening all the way through.. (thru - for you Americans)
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