Time Dilation - Einstein's Theory Of Relativity Explained!

Time dilation and Einstein’s theory of relativity go hand in hand. Albert Einstein is the most popular physicist, as he formulated the theory of relativity, which gave the Energy mass equivalence formula and is directly related to time dilation. But what is time dilation? Time dilation and space time are interrelated. Einstein made one of the most important contributions to physics and had the concept of space time explained. A simple explanation of space time is that it is a mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum. But it is very important to understand that the general theory of relativity and the special theory of relativity are different. In this short animated video, we give a simple explanation of time dilation and Einstein’s theory of relativity and also explain how time slows down in a moving vehicle!

#science #animation #timedilation #TheoryofRelativity

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[intergxntlcare]

Einstein discovered this theory in his mind without the internet. I have the internet at my hands, I've watched this video twice and am still struggling.

[exakdev]

time dilatation can be observed when your wife says she needs 5 minutes to get dressed. On your watch it passed 45 minutes, but for her it's still 5 minutes.

[swamhtet]

Cop: “Do you know how fast you’re going?”

Einstein: “Speed is relative officer”

[debiddo]

I had struggled with this for years, despite being a physicist and engineer.

The problem is that the thought experiments on this topic are fallible in many ways, if taken too literally.
[For example, what if the clock tower was on a train moving away at the speed of light from a stationary observer, or if the observer was on a train that started on an approach to the clock tower, then continued past at the speed of light?]
For me it took a completely different perspective to understand it, building it up in stages:

1) If every particle in the universe was static with respect to each other, there would be no interactions, and it would seem time had stood still, because nothing is changing. For time to become apparent, particles need to move and interact with each other, energy has to flow.
2) The speed of light is a universal constant. Do not consider light as an object, like a ball moving through space. It is a limit on how fast events in one region of space can cause events in other regions of space ("causality").
3) If you were travelling at the speed of light, the atoms and particles that make up your body would not be able to move in the direction of travel (relative to the centre of your body), since they would have to travel faster than the speed of light (violating causality...the outermost molecules of your body would arrive at your destination slightly before you should be able to arrive!). Hence all the particles in your body would actually be static relative to each other, and therefore you wouldn't be ageing. Furthermore, you wouldn't be able to have a conscious appreciation that your ageing had ceased, since even "thinking" would require movement and interaction between the particles in your brain.
4) Since any object's perception of time is relative to the "relative interactions" of the matter it is made from, it cannot perceive the difference between a tick (at zero speed) or a tick (at near the speed of light....a "tick" is a "tick" according to the object observing or recording its own time.

Due to the principles of a universal speed of light and causality, moving through space will necessarily slow the mechanism of the moving clock, and by an equal amount, the mechanism by which the moving observer is able to observe the clock. A clock moving through space actually does tick slower than a clock not moving through space.

[A profound thought regarding point (2): If the speed of light is measured by causality, and causality infers change, and change infers the passing of time....if time didn't exist, would there be a speed of light? Would there be light?]

In the context of this perspective I can go back to the original thought experiments and understand which aspects of them are useful in deriving the maths.

These are all my own thoughts. I don't know if any professor of physics would validate them. But where the original thought experiments left me feeling dissatisfied, this new perspective helped me.

[Minimanemohahaha]

Time dilatation is when the alarm rings 7am, u wake up and blink your eyes for half second, and its already 730am

[naveedahmad]

Einstein: Want to hear a joke?
Me: Of course
Einstein: Time
Me: I don't get it
Einstein: Exactly.

[zzdvtqd]

Einstein travelled home by a tram
That's all i understood

[STREETFOODJOURNEY]

now i know why i am not smart at school way back then, even now i still dun understand after watching this video 😂

[katrina]

I’m going to need this dumbed down even more

[justsaying]

Teacher: why are you late
Student: i'm not late, its time dillation

[brhilb]

Anyone else not here from school and just interested in spacetime???


Edit: thank you guys so much for 5k!!

[ausglobeman]

For those who don’t understand why moving really fast makes you slow down time:

Light must remain constant, let’s imagine you’re practising for a race with a photon who travels at -300, 000 kilometers a second.

You’ve trained really hard and you think you might be able to get close to the photon after getting a new personal best of 299, 999 kilometres per second.

You and the photon line up for your big race, everyone’s watching! You run your hardest and reach 299, 000 km/s, but wait, the photon should only be travelling 1, 000km/s faster than you since that’s the difference in your speeds. But instead, the photon is still travelling 300, 000 km/s away from you. How can this be? Does that mean the photon is travelling faster than the speed of light?

I cant tell you why the speed of light must remain constant, just the way it is. But how does it seem to travel as fast as you at 299, 000km/s plus an additional 300, 000km/s, that’s faster than light speed, which is impossible!

What actually happens is the time you experience is slowed down enough so that relative to the photon, you’re actually stationary and it’s just zooming past you as if nothing is happening at all. This is because light doesn’t experience time, from the perspective of a photon the universe has started and ended in an instant.

If we were ever able to travel at the speed of light even for a nanosecond, then the extreme time dilation would zap us into the end of the universe, literally instantaneously. This is what annoys me so much about people wanting to travel faster than light, like yeah, great idea, you’ll certainly find out if there’s a God if you do.

[proudtobebrown]

Let's just acknowledge how all of his theories were "imagined" before he proved them

[robj]

It has always blown my mind thinking that “time” isn’t an abstract concept, but an actual real physical thing that can be influenced by motion and gravity.

[chanasiegel]

Me falling out of an airplane:
Einstein: Notice how his photon clock is creating a triangular shape due to the stretching the duration of a second.

[nc]

This channel is perfect. No music in the background, so I can perfectly listen without distractions. In the description is all authoritative academic sources.

[martincornel]

"Your head is slightly older than your feet"
Me: Because my head came out first! Duh!

[atharva]

" Teachers who make physics boring are not teachers, they are criminals " - Sir Walter lewin

[brekerickson]

A long long time ago, I remember being told in the 5th grade of the 3 dimensions and then hearing my teacher say "some people even say there is a 4th dimension". On the way home I told my dad, "If the first dimension is height. Then length, then width....then the 4th dimension has to be when that object exsisted.". So I like to tell myself I theorized space-time as a child. (I mean, not really but close enough lol)

[lukhmanthufile]

Imagine the things Einstein would've discovered if he was alive today