The REAL source of Gravity might SURPRISE you... 

But if curvature is a local phenomenon rather than a global one, why is spacetime considered "locally flat" everywhere?

How does gravitotional time diletation affect photons?

what about you smash the earth into a flat pan? Or even just creat a mathematically infinite plate? then there will be no gravity gradient, while the squrrell still falls to the ground

Gravity seems almost reminiscent of refraction!

First, Einstein tells me that it's not me being heavy, but the Earth trying to smash into me! 😩 Now you're telling me that the Earth is trying to spaghettify me all the time! 😵 I want a new planet! 😭😭

*"I’ve got a lot of un-learning to do."* That's fairly normal when learning modern physics. (modern physics = most physics discovered after 1885)

You're not alone, js!

I'm 75 backwards... 57, So, I believe time in this dimension is basically the physical movement of subatomic particles. A simple 2D representation would be a atom moving forward. As the electrons orbit the nucleus, with the speed of light being the limiting factor in this dimension, on the half of that orbit moving in the same direction as the atom, the atoms forward speed must be subtracted from the electron's speed of light orbit, and is not added to the backwards half of the orbit because speed of light in this dimension. So the faster forward the atom moves, the longer it takes for the electron to complete a orbit. Hence time passing slower as you approach the speed of light is because the movements of a atom is slower. Of course the point at which a atom theoretically reaches the speed of light it would be at absolute zero. As in frozen dead still. It came to me after studying the speed limiting factors of a helicopter...

I hope I am as enthusiastic and curious about science when I am 75!! Kudos to you

It’s rare to find a person with an established way of thinking while also having an open mind. Salute!

Pamela Anderson hates you now..

You aren’t laying, you’re lying. Grammar police out.

@@resiwadofgore edit button says what ?

@@simoncook1885 lulz

Thats funny haha

Glad you enjoyed it! 🤓

Did any of it sink in?

@@ScienceAsylum Constructive criticism: lose the background noise! The subject & your narration of it is great. The addition of distracting, monotonous & annoying music ruined the vid for me. I did not get past the halfway point.

@@savage22bolt32 Your loss, My friend. I come back to this video every few months, sometimes to blow friend's minds, sometime just because I want to. Never even noticed background noise, music or whatever you mean. Please try again to make it all the way through. It's only 8 minutes long. PEACE ✌😎

I just said the same thing... and now I need an aspirin

Can’t agree more!!!

Ditto

Agreed! Superb insight.

you didn't learn shit, gravity is electrical charge.

😂😂😂

Beginning is end and the end is the beginning 😂😂

Confused*.

It's fine, eventually the end will catch up with the beginning

😂😂😜

You're very welcome 🙂

I would like to bring to the attention of experts (preferably physicists or mathematicians and / or scientists), a scientific question on communication between two people, one of which is under the influence of gravitational force. Thanks for your attention! QUESTION: Einstein said: "If all space exists now, let all time (past, present and REAL future) exist now." OBSERVATION: If we point the telescope 🔭 towards the sun, we will observe it (holographically) as it was 8 minutes in the past (from the point of view of the astronomical distance), since the light takes 8 minutes starting from the sun to reach the retina of our eyes. But the gravity exerted by the solar mass is such as to bend time to make it flow 2 seconds slower than us earthlings, so those who, ideally speaking, are in the sun would live 2 REAL seconds in the past than us. QUESTION: If a man were immersed in a gravitational field such as to bend time up to 1 minute slower (in the past) than me and, the man I want to relate to was 1 meter away from me, approaching me, I could squeeze his hand, see him and speak to him at the same instant that he starts listening to me? And he, immersed in the gravitational field, could he hear and see me? Would I be able to converse with my interlocutor in the same space (and in the same instant in time with which I start the conversation) to speak directly with whoever is in front of me, even if the latter lived a minute in the past with respect to me? In other words, according to Einstein, gravity slows down time, but with the distance of one meter, I would see my interlocutor as: A) How is he REALLY 1 minute in the past and can I communicate with him in the same instant of time because the light would take a billionth of a second? 🤔❓❓ B) I would see him holographically (as I see the sun eight minutes late) but I cannot communicate with him. ⏱️⌚ C) I wouldn't see him at all, it's impossible, unless I would talk to him through a wormhole. D) Other ........... (To you the answer I do not understand anything 🤷🏻‍♂️🤪 sorry).

@@MsRofex88 I would think that if he stayed in that gravity differential, he would perpetually be seeing you from a minute in your future. In which case, communication would depend entirely on him leaving messages that you can receive later. But how could you possibly respond to him if he stays ahead of you in time? What would he even be seeing? Would he be seeing your response to actions that he has not yet taken? No, I guess the motions would actually be locked in sync, him immediately seeing your reaction and you immediately hearing his words, even though there is technically a wide gap in time between them, so long as the two perspectives stayed constant. But if you were moving toward each other, they wouldn't stay constant, would they? Oh my this is a mind-bender.

@@MsRofex88 I would imagine that if you were to try to shake his hand you would be increasingly rapidly pulled towards him and probably he towards you, until you met at a mostly equal velocity. Sounds painful. I would also imagine your words would be distorted, and would probably arrive to him late but be sped up as he hears it.

@@MsRofex88 i think your observation is wrong. Coz you're forgetting to account thensum and its change on time as its a greater mass. Those sun people would argue that you're in the past and both of you wouldn't be wrong.

@@MsRofex88 Necro'ing this to help others learn. Remember that dilation causes a disparity in the actual amount of time elapsed relative to another region of spacetime, which is proportional to the distance you each are to your respective masses. In general, the closer you are to a mass, the less time you will experience relative to the rest of the universe. If you are on the earth's surface, then there's some distance above from the sun's surface where the dilation is equal. If your friend was this altitude from the sun, your only obstruction is the ~8 minute delay that light takes to reach one another. You'd have a 16 minute round trip to communicate with one another at this point. Great! So move him closer to the Sun. Is your friend really in a space that has "slowed down" time? At this point he will appear to be moving slower, his light slightly reddened as the photons he emits stretch (called redshifting) relative to you. It looks like he's sped up slightly. Time isn't slower, per say, there's just literally less of it being experienced in this region of space, so you see more of it from your temporal vantage point of the earth. The word "delay" isn't really possible in this scenario, because there's not a "stream" of time that he is further behind on. You both experience time, both are in your respective present, but the *amount* of time you are experiencing is different. To your scenario, a bizarre gravity field that has some sort of limiting shell a meter in distance away. You would see basically the same thing, dilation. In order to not break causality it HAS to be something relative, say an extra minute per hour past. It would look largely the same. Your friend's movement would appear an extra 1/60th slowed down. If there were molecules between you there would be heat transferred (to your friend's side) as the slower moving gasses receive energy from the (see: RELATIVELY) faster gasses and his voice would be slightly lower pitch from the vibrations appearing stretched relative to your perception. You could shake hands, but your arm would move easier and would be younger then the rest of you when returned to your side. To your friend, you would appear to have a higher pitched voice, and have a hand that feels heavier to shake. The stars around him would appear to spin faster then they do to you. In conclusion, your question isn't really possible with the mechanisms possible via gravity. The only way you could get the delay described is for your friend to be on your side, step over for an hour by his then-current clock, then step back towards you. But, this wouldn't be the "delay" that you're looking for, he'd have experienced less time then the rest of the matter around you - he'd be younger. Option D, I guess. I hope this give you a new perspective, happy learning.

Top floor folks reach the bus stop early because they use the elevator!

Haha!

Oh, a wise guy eh? Nyuk nyuk nyuk.

Funny, that actually works

@@maxmumbai1234 Don't you mean deelevator?

Was this experiment done many times? Were the results converging? Are the result lost in the noise level of the measuring devices?

The fact that gravity alters time does not serve to explain gravity

😂😂

Lmao

😆. that's cute.

😅there're many terms that she wouldn't know, so she simply ruled it out of the equation. like, "..you can think of it like a -flow gradient- around the Earth.." she might don't know the concept of flow and gradient.. So she didn't even hear those words been spoken.. probably

All hail The Time Squirrel.

I'm not going to put something like that in the title if I can't _deliver._

@@ScienceAsylum You blow my mind even more than 3b1b, and at the same time, make perfect sense. There's no reason why you don't have million+ subs. Wait for it, I'm sure it'll happen

This squirrel was stationary in curved space-time, you'll never guess what happened next.

@@tricky778 how a single clock-wearing squirrel has been blowing the mind of scientists for over a century

Jj

It's pretty deep stuff. I'm glad our videos were able to help though.

Well.... the universe didn't just create itself, and such an idea was never mentioned in the video.

Nothing cannot create itself because it needs to be something before it can create itself. Only something or someone can create.🤔

​@@wm437 well Stephen Hawking said otherwise?

Honestly? I was a professor of General Relatively. You must not have paid attention in class....the visualization? Lol

@@dannymccarty344, Yes, I always had a feeling that squirrels had something to do with it but it was never brought up during the classes.

@@dannymccarty344 you can't be a square on RU-vid nowadays when the channel courts quirky folks. The roasting will leave you tender 🤣🤣

There is no such thing as gravity; It's a theory, not a physical reality.

@@danielmconnolly7 yes exactly. Why don’t you prove that by stepping out from the rooftop of your house? ;-)

X2

The first? lol

yeah dude, the first that I see that does that

"curvature" is very confusing term. easier to understand description would be. a mass creates more space per volume near it. (as in Harry Potter's magic tent) a mass makes the time flow slower near it.

Yes it's the first video which literally gives you the feeling that gravity is not force at all!

Have you seen the movie Interstellar?

Agreed

@@knowbody4903 Yes, most people watching this probably have and if not they’re missing out. One of favourite films of all time. Yet still I don’t see how it’s relevant to the original person’s comment?

i knew most of it before so... nothing really changed, but that time gradient thing is kinda new, i mean i knew that it's relative

@@joecraven2712 it's literally a movie about complimentary concepts, Its relevance is self evident.

waste of time .make fun because do ot know the subject or how c to expllain it in lay ma words.

You're very welcome!

You're just expanding to keep pace with the expansion of the universe.

Ahead of your time.

keep it ON the roof, as per de vídeo we all will benefit

D:

In space, no one can see your weight.

Lol

Nice and elegant excuse.

If time is immaterial, then what is material? Time = life.

@@ANDROLOMA so life is immaterial? What then is material? You answer a question you didn't ask, and ask a question you don't answer.

@@JordonPatrickMears11211988 What was the question I answered that I didn't ask? I asked a question you proved incapable of answering, smart guy. So you simply deflected instead of answering, the way I would expect of any grade schooler. Grow up, instead of down.

A heuristic explanation suitable for this video is that if the squirrel's head moves faster than it's feet and it doesn't rotate it must also get longer. College physics was 35 years ago, but I'm pretty sure the real explanations is "Lorentz says so."

The sick beats in the background don't hurt either.

Sorry but these vids give you the basic concepts behind these phenomenons you would have to use math to go deeper into it

Do you watch physics video by Eugesshbfbaz(can't remember the spelling)...? His video is longer but is amazing too!

Pin Seng Lim could you please send the channel name with the correct spelling? I want to check him out!

@@mrhatman675 Yes, but these basic intuitions are often skipped when learning the complex way. I wish more professors would teach the concept first THEN the rigor, instead many of them like teaching rigor and proofs and hoping you'll make the intuitive connection on your own.

Me too, I went "wow" with him every time.

Glad I could help 👍

Really? I DIDN'T GET IT. There was an explanatory gap between "time travels at a different rate" and "the squirrel goes down". I don't see how the one implies the other.

If you were too high you would have skipped a grade.

Just lie down, gravity will be less! Say what❓

What happens when your head is spinning a mile a minute but your feet are just standing there. Just dance faster!

😂😂😂

Actually, you would've been leading, not lagging

Glad I could help! 🤓

... He mixed up the x variables. He propositions X as "time" but concludes it as a spacial direction of movement. to my knowledge time does not add physical energy to inert objects.

the top of the squirrel would just be older than the bottom. the particle visual is confusing the way it looks like FORCE and not RATE of change

The problem with the rubber sheet is that it still requires gravity to make it curved! Carlo Rovelli's book was the first source for me where i read this 'time dilation causing objects to fall on the Earth' description.

@@ScienceAsylum Did You? You ignored the fact that Albert predicted time would slow or speed up under different gravitational potentials. But he did NOT predict resonant frequencies would change under different gravitational forces. Seeing as Resonance was observed and understood well before Albert. Please note the following well accepted scientific FACT: “The *damped* *natural* *frequency* is always lower than the natural frequency” Notice a stronger gravitational potential is damping the atomic clock at lower altitudes. Not Alberts fantasies.

You're welcome! 🤓

Shit hitting the fan yet? :)

What’s the book

@@1084kmp i think they mighta been making a pun

@Layarion so am I :)

Want Anti-Gravity,? Just train your clock to run in reverse.

Surprisingly not my case this time

same for me

Density and Boyancy . Gravity is not real

Whoa

Interesting thought. So would that mean it actuall measures nothing, or is representing time squared? I wonder what happens to the hourglass if it stops moving through time.

meta

man u just blew up my brain's blown-up parts, that blew up from the video already.

Wtf.

A journey to the end of the universe by cool world, check it out my man 😉

@@McSupraQc yessir caliss go habs go

@@VaiskHD pouahahahaha esti d'malade 😎🤘

Or as a wise squirrel once said: why not climb that tree and challenge Einstein?

picture of captain america pointing at the camera*

Great explanation. Thanks!

@@andrewboychurch Aristotle's ideas are tortole for the present time. 🐢

Time dilation...the past is on the ground...so perhaps the squirrel falls because he is doomed to repeat history?

Ditto here

Yeah , for me too, now i have some serious questiona about time tho....

Yeah, how is this not common knowledge if it isn’t fraudulent?

So you know why and how mass causes a time gradient??

@@markvanslooten5311 nope. I'd have to find another video for that

LOL oh to funny....but it may be true why do feet get bigger as you get older?

yes

If so, then why does the scrotum wrinkles more than the face.

Proximity to mass?😂😂😂

I was going to upvote this but I think this comment should stay at 69 likes.

Many people talked about that but it is so incredible that you didn't searched fot it. Please try "gravity illusion" in the seaching part of youtube and you will find many videos about this subject, like the famous one from PBS space time : ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NblR01hHK6U.html Regards

Try here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gcvq1DAM-DE.html

You don't watch Vsauce?

read about relativity, it's all really good

yeah something did blow...my head

This is a good introduction, follow up on VSauce for a more in-depth look at it

Glad I could help 🤓

Gravity is like sitting on your mattress with a bunch of various objects on it. The heavier the object, the deeper the squish in the mattress. We put more squish into the mattress so the smaller objects and their little squishes get absorbed into our larger squish, pulling them in! Or, you know, maybe a trampoline or something. Some videos on youtube have teachers putting out a tight cloth with various weights that really demonstrates this well: the heavier, the deeper they pull into the fabric. Some objects are even made to simulate orbit.

@@davidm4566 Maybe matter squishes spacetime because its made from it so there's less spacetime there to pass through?

@@coenraadloubser5768 interesting. more like knotted space time is matter, so around matter there's twisting like near a knot. All this is just fairy tale for now. Will need mathematical proving or disproving.

@@vhawk1951kl It's an irony you would type all that comment using your computer or phone that are built from using the very same models of modern physics which you say is no different from religion.

You're welcome!

Wtf stop blowing my mind, no pls continue

Haha, that's smart. If you can figure out how to make a time machine, then this should work perfectly.

I think you could levitate the squirrel also if there would be an equal mass on top of his head...letting the attraction of the both masses exerting on each other aside...the squirrel would levitate..and later on, unforutantely, rupture in two pieces. Maybe if you would create "Anti-mass" then you would have a backflow of time and anti-gravity?

@@oscarword775 as long as it is causally consistent it's totally theoretically feasible

@@kosatochca That's pretty cool to know. Thanks.

Glad I could help! 🤓

@@ScienceAsylum if there's a time gradient the squirrel can rotate in time in your graph but in the same place, why to fall?

😆

You're welcome.

What I don't understand is if this theory is correct than any object existing in our physical plane is in constant motion, but that would mean an object that is stationary and completely isolated from any other object of any size, it would mean it would move regardless, which goes against the laws of physics which state an object at rest will stay at rest unless acted upon by an equal and opposite force.....???? It seems this theory would only work if their are 2 objects, Mass is a missing factor in this theory, it affects if it can make any sense.

@@esvin8771 everything around you is in constant motion. our galaxy is flying though the universe while we spin in circles around it and so on until we get to our planet. everything at 'rest' around you only appears that way because you are traveling through this universe at the same speed they are. if your in a car driving and set a piece of paper on the other seat its not moving in your point of reference but to everyone else outside of your car, that piece of paper is in fact moving down the road along with you and your car.

However, I got to think, that the objects with lower density would be longer thus the acceleration gradient from top/bottom is bigger. It means that the feather falls quicker than the lead. Some kind of contradiction to the law of the same rate falling in vacuum...

@@esvin8771 Newtons law says that an object will stay at rest unless acted on by an outside force. This theory is literally and directly about the way two objects affect each other, so how would it be a problem in your scenario? If there was a universe with only one particle in it then this theory would still work, it just wouldn't apply to that universe because there isn't a second particle to experience the effect. If there were two particles or more then this theory works and applies as expected.

Then why do all objects of different size fall at the same rate? Clearly it is not some intrinsic property of the falling object of any size. The reason it falls then, must be outside the body and act independent of the body.

Whhhaaaappp!!!

Me too he just got my subscription as well

There is another video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wrwgIjBUYVc.html

haha yes, me too.

just subscribed for the EXACT reason! lol PLUS i can share with my father in-law because I’ve been trying to explain and visualize this to him for weeks now to no avail! THIS WILL 100% convince him! I will post back with progress! THNX warden!

It's not "space" itself expanding, as we kinda assume space is nearly infinite, it is the stuff in space expanding away from everything else. Almost like the surface of a balloon when you blow it up with air.

Best Clone!!!

Neither. There is a time difference between them because of their different distances _from earth_ . The earth's mass is causing the time gradient. It has nothing to do with its rotation. See pinned comment answer 4.

Yuh, all it is doing is using gravity to explain gravity. Not very satisfying. (Explanation: "Small ball rolls toward big ball, because it is downhill toward the big ball, so gravity tales the small ball toward the big ball") You just used gravity to explain why gravity does what it does!!!!!!?.......!!!?? All both explanations do is say that somehow the warping of space time causes gravity. But neither explains the mechanics of WHY it causes gravity

Now imagine that this flow of time was laminar all along due to the "pressure" of the Big Bang, and at some point in the future, it will break into turbulent flow! 😜

We are evolved from the bottom of a quite steep spacetime gradient. What we pecieve as "1 G" is the culminations of an unimaginable number of spacetime differential interactions between the particles that make up your brain that is reading this, to the aggregate of this entire patch of the Universe.

you just reversed scientific consensus..its the Gravity that creates the illusion of Time..how can he claim that time is more fundamental than gravity..?! well i say gravity is more fundamental than time..in fact time exists because of gravity..that's why Einstein said time is an illusion..

@@hunk2140 That is incorrect. Spacetime are the interrelated definitions of... well space and time. Gravity is a consequence, even an artifact, of spacetime curvature. The Universe is clever like that.

If things move towards a place where time passes more slowly...and the big bang has all the stuff passing at minimal time...it's like everything is slowing down out of the bang, the same way things are experiencing heat death. Time death. Everything is trying to enter lower energy states? And if we consider time to be "change" (of energy...for of energy...), then time/gravity is a consequence of the universe trying to spin down from the Big Bang. Is this sensible?

I mean that the closer you are to Earth, the slower time moves. The farther away you are, the faster it moves. The differences are very small, but they're measurable. It does affect satellites, especially if they're sensitive. We have to adjust for it in our design of GPS satellites, for example.

Yep! And that's not even because of a relativity. They're actually out of a sync by a _noticeable_ fraction of a second because of how your nervous system works. Your brain just compensates and adjusts your perception so you don't notice 🤯

And explains why I hit a curb pulling into a gas station today..can happen while driving, too😳

Basically input lag

@@ScienceAsylum This is why in martial arts, you are taught to not think. The time it takes you to think interrupts the flow. Or as baseball legend Yogi Berra said about success in batting: “You can’t think and hit at the same time.”

@@issacflores9278 output in this case but yhea. In put is the fraction of a second your brain takes to realize what your eyes are seeing. The total lag between input and output is reaction time.

No, it exists as part of the _spacetime curvature_ around the mass of earth. Gravity, that is gravitational attraction, is a result of the curvature. See pinned comment answer 3.

And you still dont understand gravity any more than you did before. Setting the graph up with a squirrel mysteriously tipping in a downward direction on the graft, explains gravity???? He explained nothing.

Have you been to my Aunties for tea again?

@@nelsonclub7722 Nothing like chewing on a lump of gravy... helps you to make the most out of your Sunday roast!

Don’t panic, cover it in an S.E.P field.

Excellent point! If you want to really grasp how UN-normal our universe is, try this.. seriously contemplate our sun! Here is a giant ball of fire, that has already been burning for BILLIONS of years... and it will continue doing so for BILLIONS more.. Anyone who has ever just tried to keep a campfire going can appreciate the mammoth achievement that a star is!

Thanks for all the fish. D

Centi.

@@i.m.i.7310 In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.

I had the same question. Adding my comment to feed the algorithm. Hope someone can answer this

We don't actually know why. We've simple observed the relationship (between mass and spacetime) and know what that relationship looks like.