Stephen Hawking - What It Takes to Time Travel

I decided to upload something different this time. This is a video about what it would take to time travel, intellectually aided by an incredible man of our time: Stephen Hawking.

[giodydio]

This is fucking amazing, i'm so hyped for no reason, i will never travel in time but someone will, one day, when we  all will be dead but just think about it man, it's  crazy that there is a possibility of going into the future, can you imagine? "sup people i'm 300 years old" but in the earth you're still young 

[sagarggoyal]

Well i think I'm the only one who was expecting robot voice..

[Digitalworldfly]

i dont want to go to the future i want to go back

[narjitmankoo]

This is a brilliant and stunning sequence, need to watch it on IMAX screen. RIP Stephen Hawking you will always be remembered for making science accessible to the millions.

[FateBound]

This isn't time travel. This is chronostasis. They're not jumping from one point in time to another. They're being preserved while time flows around them.

[mlg]

We "exist" in the present. However, we are only "conscious" of the immediate past, because by the time our brain processes the physical/mental input from the present (in order to react) the present moment is (relatively speaking) long gone...

[whatthehec]

"A trip to the edge of the galaxy would take just 80 years." The galaxies are so massive that even the speed of light isn't fast enough.

[crazyidiot]

2000 years ago, when someone asked "what it takes to get to the moon", someone probably said, "lets face it. this is never gonna happen.

[mardigann]

Travelling into the future relative to our friends on Earth is pretty cool, and it's not too far fetched either.  But what intrigues me more is theories surrounding time travel into the past.

[-valkor-]

Wanna Make time faster?
Answer: Play Video games

[MercuriallMan]

Space-Cop: Pull over, you're going too fast ... (*____*)

[cytherians]

And of course, what isn't covered here is the energy required to stop. If it took you 4 years to get to 90% of the speed of light, you'd need another 4 years to stop the ship. And... what if there was an asteroid or some other celestial body in the way? The ship would need to be able to maneuver to avoid objects. And if there was an object traveling fast towards the ship, there may not be enough time to maneuver... causing destruction.
Our only hope to ensure the record of Humanity survives is to build self-sufficient intelligent robots.

[CelestialSoul]

I love how he says "Just 3 Trillion Light years".

[hungnoza]

Wow...Mr. Hawking, If God agrees to give me a wish. I would wish that you can get rid of you illness and fully recovered, so that you can do a lot of things for us all.
Thanks to you Mr. Hawking!

[remmsten]

i cant watch this as many times as i thoug i think i looked at this 45 times already

[hxhxhgfd]

Any object with resting mass has what we call a gravity well. This well is basically a warp in space-time caused by that object. A simply way of looking at it is imagining space-time as a sheet, and viewing gravity as a warp in that sheet caused by, say, a marble. (All of this is scaled up a dimension of course.) Black holes have very, very deep gravity wells (a lot of mass compressed in a very small space), therefore nothing can escape them beyond a certain point called the "event horizon".

[Anothergalfromdownunder]

Fascinating, thank you and godbless Stephen Hawking 💜🙌🙏💖

[Mnlsnk]

The music makes it that much better! If you were time traveling in that ship at .99c, what one song would you play over and over again?

[chosanon]

easy if you take e=mc2 and run particles through the higgs field to gain mass, then bounce them off the intersteller sadalites you can create a gravitational warp drive

[EntertaningAmerica]

With interstellar ships, we have to change our entire way of thinking... Instead of it being a ship with an engine, the ship WOULD be the Engine. An engine the size of a city in fact, with a small habitat or cryo-camber area strapped to it.