Time Dilation: A Phenomenon That Blew Einstein's Mind!

Time dilation is a result of the fact that the speed of light is constant. No matter how fast you are moving, the speed of light will always be the same. This means that if you are moving close to the speed of light, time will appear to slow down for you. #TimeDilation #Einstein #SpecialRelativity #Physics #SpaceTime #TheoryOfRelativity #TimeTravel #GravitationalField #SpeedOfLight #TimeIsRelative #science #sciencefacts #scicomm #stemeducation #sciencecommunication

[shikharkeshari]

Such a difficult theory in extremely simple words! Keep it up!

[jray]

Before I knew what an Einstein theory was I’m sitting in middle/high school, day dreaming about stuff, and had imagined what it would look like to move at the speed of light. I imagined time standing still, because in my thought I would be covering more distance in what would appear to be no time at all. And yet, if I left to someplace on earth and came back at that speed it would look like I had never left to everyone else. Of course, soon as I got deep into thought about this I’d be snapped back to reality when the teacher yelled, “HEY! PAY ATTENTION!”

And so there you have it, the story of why I’m not Einstein. Now I work in a warehouse using my gifts to fulfill amazon orders.

[jannetteberends]

Slowly I start to understand the theory. This was such a good step. I could completely follow it.

[streetdogs]

After watching hundreds of videos fir years now i understand what actually it Thanks from India🇮🇳

[toreekx]

I get that the clock tower appears frozen because the light can’t reach Einstein’s eyes, but I don’t get how moving close to the speed of light affects aging for example. Even though Einstein can’t see objects move that he’s traveling away from, how does that make his body age slower

[hyperboytkl]

Time is one of the greatest mysteries of the universe.

[vesuvandoppelganger]

Ship1 at rest at top:



Ship2 at rest at bottom:



T1 and T2 both have a lamp with a lightbulb. Both lamps are initially off. When T1 is lined up with N2, T1 turns on his lamp. When T2 is lined up with N1, T2 turns on his lamp. When T1 turns on his lamp is T2's lamp on or off?

[vesuvandoppelganger]

There are 2 contradictory time dilation formulas that can be derived from SR.

If the distance between the light source and the mirror on the ceiling is L and the train moves to the right at c/2, the light travels 2L for the observer inside the train but (√5)L for the observer outside the train for the roundtrip. Since c is the same for both, it takes time 2L/c for the observer inside and time (√5)L/c for the observer outside.

From this we can derive the time dilation formula T=T_o/(√(1-(v^2/c^2))).

Now, when light is shot vertically toward the ceiling but at an angle to the left, say arctan(0.5), and the mirror on the ceiling is moved accordingly to the left to reflect the light correctly, the light travels (√5)L for the observer inside the train but 2L for the observer outside for the roundtrip. Since c is the same for both, it takes time (√5)L/c for the observer inside and time 2L/c for the observer outside.

From this we can derive the time dilation formula T_o=T/(√(1-(v^2/c^2))).

The variables are switched and the formulas are contradicting each other.

This shows that SR is invalid.

[ujjwalakaloorey]

so is 13 billion year old universe the same number for the other civilizations if there are in the universe or is it more or less according to their space time ?

[PBJ-fe]

Time isn't slowing down. You're just moving faster

[Xend]

So time doesn't pass slower, you just don't see things move because the light can't reach your eyes? I cannot totally understand this, the same with time dilation caused by gravity

[pixelapse]

Every science videos, there's at least one Flat Earther that commented negatively

[darkness]

This is probably a dumb question, but I’ll ask anyway. Is this why we are finding that the universe may be older than 13 billion years? Is it 13 billion years old only according to us on earth but it may be shorter or older to objects that have more mass or speed? This is a genuine question please don’t just tell me I’m an idiot I already know that I’m just trying to learn more, this is such a mind bending think to ponder to a simpleton like me

[hyperr.hyperr]

If you had a clock following you in your face I feel the hands would move the same speed the only thing that changed is how far you got in such a short time span

[shawns]

Hello, here is the best thought experiment to bring clarity to the subject -
First off, Einstein thought the math regarding this did not accurately describe physical reality. It's not his math, he hired someone for that. His math is represented in a dilation/time dilation graph, X amount of velocity = X amount of dilation/gamma.
If a spaceship travels at a constant 1g acceleration rate, it would achieve about 95% light speed in 1 year. No matter how fast the ship goes everything would be normal from its perspective, hence the term "invariant". We are all traveling at the speed of light relative to some potential vantage point. Mass dilation does not mean mass increases, it means mass becomes spread throughout spacetime relative to an outside observer. Hence the term "mass becomes infinite at the speed of light."
When the ship reaches 50% light speed, as viewed from an Earthbound observer with a magically powerful telescope, it would appear normal because as the graph shows, nothing has changed at that point.
When the ship reaches 75% light speed it would appear fuzzy because as the graph shows relativistic effects would be noticeable at that point.
When the ship reaches 99% light speed it would not be visible because every aspect of its existence would be spread throughout spacetime relative to an Earthbound observer.
Mass dilation occurs wherever there is an astronomical quantity of mass. Einstein wrote about this, this means that Relativity forbids astronomical concentrations of mass. The mass in our galactic center is dilated. In other words it's not just there, it's everywhere.

[Kanpuriye]

Take two clock, place them a light second far from each other. Sync them, and now move from one clock to another clock at speed of light, time has changed 😮

[ThanksGivingFood]

I’ve got a question
Imagine a theoretical phone that can communicate and use FaceTime with anyone no matter the distance, now imagine 2 guys using that phone, they are FaceTiming each other, one guy is on earth and the other guy is orbiting a black hole in a distance that time dilation is very strong, what will the other guy on earth see?

[rajithaabeykoon]

i kinds get it now but whats up with these ppl saying that someone who goes at speed of light ages slowly than someone at earth?

[panther.]

is this like if u run a 100m race and one of the racer is gonna go slow and one is gonna go fast and the slow racer wastes more time running which means time is faster for him but for the guy running fast, time went by slower for him or

[AustinQuintens-xzfd]

Time didnt slow down for Einstein. Its just that everything we see with our eyes comes from light, and when the clock moves, the visual information of that clock moving, moves at lightspeed away from the tower. And now because Einstein is also moving at this speed, new information from the clock cannot reach him, therefore appearing time to stand still behind him.

If Einstein were to move towards the same clock, time would move faster on the clock.