Name: 光の速さよりも速い旅をしたとしたら？ (What If You Traveled Faster Than The Speed Of Light?)
Uploaded: 2021-01-14T07:10:43.000Z
Duration: 3 min 47 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

程度の副詞

hey there welcome to life noggin just the other day I was having an intense

debate with triangle Bob on the speed of light I was so ready to drop some

転換語

knowledge on him but triangle Bob did what he does best and ran away because

he knows he was wrong he didn't go faster than the speed of light but is

that actually possible what would even happen, but before we get into it we

teamed up with our friends at Firefox who are all about speed to make this

video possible. Firefox is the only major browser backed by a non-profit and the

new Firefox lets you browse the Internet twice as fast as before download and see

the new Firefox today fast for good now to start our exploration just what is

light exactly well it's what's often referred to as electromagnetic radiation

in a certain range of wavelengths typically based off of what we can see

with our eyes but can include other radiation that is out of the range of

what we can see it's made up of particles called photons and travels at

a speed of about 300,000 kilometers per second in a vacuum. To give you an idea

of just how fast that is if someone was moving at the speed of light they could

circumnavigate the equator about seven point five times in just about one

second. If superhero comics taught me anything I'm a little worried the earth

might go back in time and I really hope that's not true because then this video

wouldn't exist. superheroes aside can we go faster than

light? well in a vacuum that doesn't really seem to be the case however in

different mediums like glass and water light travels at slower speeds due to

its slower speed it is possible for some particles to beat light in a race when

it's going through certain mediums. In fact when this happens Cherenkov

radiation can occur. Named after Pavel Cherenkov this type of radiation

can be seen as a bluish white glow in places like the pools of water that

surround nuclear reactors in these instances electrons from the reactors

are moving through the water faster than light is moving through the water

creating what we see as the faint blue glow. It's similar to a sonic boom but

with light instead of sound. Going faster than light in this way is kind of like

having Usain Bolt wear Iron Boots so that you can beat him, but hey a wins a

win. It's also interesting to know that a few years ago researchers in Scotland

were able to slow the speed of light traveling through free space. Like we

said before we already knew that light could be slowed when it moved through

things like water and glass but they found that they could

slow photons moving through free space they did this by applying a mask to an

optical beam that gave photons a spatial structure to reduce their speed. While

the difference they were able to measure was small hopefully this could lead to

some pretty awesome discoveries one day and help us better understand light. But

just for fun, if we could find a way to travel at the speed of light, what are

some things that might happen? Well there would probably be some complications

like running out of fuel rather quickly or having a hard time avoiding space

debris when going at that high of a speed. Also due to time dilation if you

went on a mission in space going at the speed of light when you got back to

earth your loved ones relative to you would have aged more. If you did it for

long enough they could even be dead and that's pretty scary to think about. Let's

move on. If we could travel at the speed of light it would certainly open us up

to some amazing opportunities besides just being able to get to school or work

on time, we'd be better equipped to try and colonize other worlds. Going at the

speed of light we could reach Mars in under 30 minutes. We could also reach

Trappist-1 in the span of one of our lives as it would only be about 39 years

away if you haven't heard of Trappist-1 yet it's a planetary system with the

most earth sized planets found in a habitable zone of a single star finding

a way to get there could be a great leap for Humanity expanding itself to other

worlds. If you could travel at light speed where would you go? Let me know in

the comments section below! Did you know that yours truly is on Instagram and

Twitter? Go follow me for exclusive stuff that you won't find here! My name is

Blocko! This has been life noggin! Don't forget to keep on thinking.