Slowing The Speed of Light Down To 2 m/s—What Special Relativity Feels Like

Watch other popular videos from my channel
Gömböc—The Shape That Shouldn't Exist

Shooting a Nerf Gun Backwards While Driving At The Bullet's Speed Forward

Superhydrophobic Knife Slices Water Drops in Half

Real-Life Invisibility Cloak Can Hide Anything! How Does It Work?

What's Inside the Worlds' Fastest Heat Conductor?

Can You Use Umbrellas Instead of a Parachute?

Opening a Bottle of Liquid Nitrogen Under Water!

Warning: DO NOT TRY—Seeing How Close I Can Get To a Drop of Neutrons

*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.

[TheActionLab]

*Interesting note:* Even Einstein was mistaken on length contraction. He had said that a sphere would look like an ellipsoid. However, Penrose later proved that a sphere would still be spherical, although rotated. Notice in the simulation how the spheres are the only objects that don't look distorted when moving at near light speeds!

[Souvik_Dutta]

Traffic Police: Sir, You run the red light.
Scientist: No, I saw it as Green because of doppler effect.
Traffic Police: Understandable, here is your 178758000km/hr speeding ticket.

[DaiSy-fshr]

"The only downside in being faster than light, is that you must live in the darkness"
-Sonic Capable Hedgehog

[DrewFeille]

Here's one way to understand why things seem to get farther/longer at high speeds:

Normally your eyes only catch light coming from a certain direction in front of you. But as you go faster, your eyes can catch up and intercept light that would normally be outside your file of view.

So imagine that your eye is a bucket with its opening facing forward, and light photons are pellets being fired all around you. At rest, the only pellets that can enter the bucket are the ones in front. But if you move fast enough, you can outpace pellets that are traveling sideways, or even ones that are coming from an angle behind you, so your bucket can catch more pellets from a wider angle.

If we go back to thinking about light: this is why the camera seems to zoom out when moving forward. Your eyes can now catch light coming from angles to the side, or even behind you.

[ashrylka_]

For understanding the Doppler effect in real life, I use sound - for example, when riding on a train and going past crossing bells at speed, or if a vehicle with sirens goes past, et cetera. The pitch audibly changes between coming towards you and going away.

[Pedro-fhec]

"If you want to live longer you have to move more"
Turtles: Are you challenging me?

[mochii]

“ if you’re moving close to the speed of light it appears as if you can get from point a to point b faster than normal” ...well yeah

[jrilo]

I once played a game about a velocirraptor that changed the speed of light to 3m/s and it was really interesting. It explained weird relativistic effects, but in a third person camera. You could do cool things like keeping a powerup more time than you should or passing between fast moving platforms with time dillation, slipping between really close bullets, moving so that two different coloured objects appear the same to you because of Doppler effect, etc.

Nice video!

[gamedevbrownbus]

I would be terrible at moving close to the speed of light... I got terribly seasick/motion-sick watching the video.. Really informative and amazingly interesting topic. Thank you for uploading it, I like the way you can explain hard to grasp concepts in a digestible manner

[amoracerola]

This explains why when you drink a speed potion or sprint in Minecraft your screen zooms out.

[mdtarequzzaman]

Day 135 of quarantine: The Action Lab has turned into a gaming channel.

[hsul]

5:16 The concept of 'time slowing down' was explained so easily and well.
amzing

[spacekitt.n]

in a few minutes with a simple exercise you have helped me understand doppler shift in light better than any abstract description of it could ever hope to. you are doing gods work

[joshbuilds]

"Walking at near speed of light"
What if you started running instead?

[apfelninja]

That last bit made me think about that feeling of vertigo you get in dreams; you know, when you try to run forward, but the thing in front of you goes away. And then I start thinking about how in a dream, years can pass within the six hours of a night's sleep. Kinda sounds like time dilation to me. What if people already subconsciously know how time dilation and the speed of light work

[ProudToBeAHillbilly]

I love his videos I'm not going to lie lol reason I love watching them as soon as they drop is it might be something else I can learn more from. I've learned so much just by seeing his videos. Thank you very much for educating someone like myself!!! Please never stop making content!! 👍👍👍✌️

[_Just_Another_Guy]

The "stretching out" part perfectly explains what happens to the stars in "warp speed" in sci fi movies like Star Wars. The stars get "stretched" to thin lines outside the ship's windows.

[windowsxpmemesandstufflol]

So basically when you move you become a thermal camera and a UV detector

[bryanchu]

its so cool how the length contraction looks exactly like what a dolly-zoom/vertigo effect looks like in movies

[dioderent]

jesus christ this game looks like a huge acid trip