Why Does Time Stop at the Speed of Light?

Light travels through space at a constant speed of 186,000 miles per second. Time, on the other hand, is a relative quantity that sometimes passes more slowly and sometimes more quickly, depending on the observer's point of view and speed.
This fact was described by Albert Einstein in his famous theories of relativity. By extension, the physics genius also came to the realization that time stops when the speed of light is reached.
In this video we’ll take a look at why this is so and whether we humans can somehow take advantage of this effect.
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Let's start with the mystery of time and the speed of light.

[stFoxmovie]

I can confirm this after years of my own study. When I am at work, time slows or stops completely. When I get home from work, I don't have time for even dinner...

[happyfamily]

I believe it is the other way around…the man in the spaceship does age much slower than the man on earth.

[novanryder]

Is it just me or are there more than a few contradictions in the explanation of the relativistic effects of time in this video?

[jackiejames]

A good analogy is having a ruler in time space. If space is compressed to singularity or stretched out the ruler is still a foot across one foot of space. The ruler only looks like less ore more than a foot for anyone observing it from space of a different density the ruler is in.

[rorykennedy]

This video has taken a fairly complex subject and just made it 10x more complex. It's correct that time isn't constant, but not due to velocity, that's the perception of time, however gravity does affect time. The more gravity the slow time passes, that's why the first satellites clocks all had to be altered, as time passes faster for them.

[ftomcat]

Acceleration is measured in [distance / (time ^2)] - not [distance / time] as the video states.

[bobbybvbv]

Mathematically time stops, physically we have no idea.

[terrytwotoes]

I can't sleep so I come here to get anxiety

[danielneves]

Time dilation got a bit complex there. I think there is a easier way to understand. There are three dimensions of space and one dimension of time. Since four dimensional shapes are hard if not impossible to visualize, we do two different charts - a three dimensional chart for space (x, y, z) and a dimensional chart for space-time (time on y axis and space on x axis). The second chart of space-time, on a fundamental level, shows that the more you travel through space the less you travel through time. It's like at light speed your position on space axis becomes "infinite" and there isn't a correspondence from the axis of space to the axis of time. The more you travel through time, the less you travel through space (stationary observer). It's trading space for time and vice-versa. At light speed you basically stop traveling through time to travel that much through space.

I know this is very simple explanation but if you want to avoid special relativity equations and other relativistic terms like proper time, the easier explanation is that you trade space for time when you move. The faster you move through space, the less you move through time.

[scotty]

Since you're going so fast, time has to stop so you have time to look at everything going by.

[omnis]

Their once was once a gold fish called Einstein who kept on telling me that the speed of light had a constant of 225 000 km per second.
I didn't have the heart to tell him otherwise, as he was a very good gold fish who kept on going around and around in search of the answers to the universe.

[cubedtothex]

This just led me to realize that if we are able to travel faster than the speed of light, we would actually be traveling back in time (seeing light moving backwards) which seems to be a byproduct/consequence as that is the only way we would be able to exist in space/time at that moment.

[michaelzoran]

The equation of e=mc^2 only exists with the primary factor of "Energy, " because it is easier to write that way. Originally, the primary factor was "Mass." Also, I believe the term "The Speed of Light" is not necessarily the best term of expression. "The Speed of Light" essentially means, "The Speed of a Massless Object." The maximum speed in the universe is "The Speed of a Massless Object."

[steffenritter]

If I had possessed the mathematical ability, I know exactly what I would have done with my life. This video was very interesting on several different levels, to me. Thanks!

[Hjaltland]

Whats the betting my old clock will still work at the speed of light.. someone prove me wrong! LOL🤣

[TroutvilleTed]

Great, I am going to work now with "Why Does Time Stop at the Speed of Light ?" on my mind.

[vickiecarnes]

There’s definitely something special about light and space they are the flip side of the other. But it does create some very interesting paradox’s……. Makes me wonder how much is our perceptions and how much is reality outside our perceptions….. some very mind bending theories being put out there. But I’m a nerd so…. Love it!❤

[barryzeeberg]

2:29 - he gives a speed, but calls it an acceleration. if he gets this wrong, can we trust him on anything else that he says?

[wingzero]

Slowing down light is amazing, when nerds say laser pistols wouldn't work like that now they have a working backup, well actually the pistols have a light slowing mechanism and that's why the beams are slow and visible.

[michellebarber]

Source simply understood speed of light time stops explained for me.