How's life been these last 11 years?

@@freshtoast3879 it's getting worse

@@dragospahontu no doubt

Hans Zimmers "Leave No Man Behind" from Black Hawk Down would be perfect music for this sequence. For people to benefit from relativistic space flight @ near light speeds they must go on the trip

Perhaps the greatest science popularizer of all, even possibly a level up from Isaac Asimov.

Hear, Hear!

Hilarious comment. 😂

I still recall getting a chuckle out of that when me and my mom watched the original airing of Cosmos. Always had to be SO precise. The best occurs when he enunciates the !Kung tribe of the Kalahari-he must have practiced in front of mirror for hours, because the proper naming requires a special “clucking” sound with the tongue and the roof of the mouth. What a hoot Carl Sagan was!

That’s awesome! I was also duly inspired by Dr. Sagan-went on to read 9 or 10 of his books, then read Asimov, Wheeler, Kaufmann, Gribbin, Hawking, Calder and many more-and became a soil scientist in the employ of the USDA/NRCS for 32 years.

Carl Sagan agrees with you! That's why he wrote books and starred in television shows, he wanted everyone to think critically as he did. It's up to us to embody the Sagan wisdom in ourselves as well as waiting for another Sagan type scientist to take Carl's old position.

Did this guy just acted as Vatican police against a harmless joke?

No you dont

Hail Sagan!

Obviously, younger brother Vincenzo did not stay on the bench for fifty years. While Paulo took his relativistic ride, Vincenzo went on with his life, but returned to the bench at the same time every day, waiting for Paulo to return. The time dilation effects of special relativity led to a poignant reunion.

that is science fiction. travelling far into space will not change how fast you age. if you are 40 and it takes you 60 earth years to fly somewhere, you will still be 100 by the time you get there, and will look like it too, if you're not already dead from old age before then. If you could fly to that place in 1 minute, and be back in 1 minute, you and everyone else on earth, would still be 2 minutes older than you all were before you left.

​@@shaquadradeloiserussell8659if you traveled away from Earth at light speed for 1 minute, then return to Earth at light speed for the same amount of time almost 100 days would have passed on Earth in those two minutes.

Theoretically

@@SiphiliSx No it would not have. One Earth minute is still one Earth minute, regardless where ever you are in the universe.

Yep the Doppler effect affects light waves and sound waves :D

> If we are in that car, our field of vision narrows due to speed relative to a "static" earth. No it doesn't. The effect Carl is talking about, where things that are behind you appear in front of you, only happens at very near the speed of light. It doesn't occur at the incredibly sluggish speed of cars.

Not unless we can travel at the speed of light

Just as Carl Sagan had a “magic camera”, Paulo had a “magic motorscooter”. All to perform the “thought experiment”.

No it wouldn't. 'Time' does not have one definition. It is all relative to each individual object, and yet it is also relative to all objects at once. Its all down to perspective.

Amazon...?

No it wouldn't. Just because its 12 a.m. in central time zone in America, and its 12 p.m. in Indonesia, does not literally mean Indonesia is 12 hours into the future. 12 a.m. here is exactly the same time as 12 p.m. there. If you don't believe it try doing a video call with somebody in Indonesia. Light years cover distances not time. Which is weird, because Carl Sagan himself said that on the first episode. So this time travelling crap is a complete contradiction.

@@shaquadradeloiserussell8659 Hmmm the documentary I saw was talking about distance from above the Earth and that the higher we get, the slower time passed. It had nothing to do with alternate time zones.

@@RobCLynch If you are somewhere in space other than here, then you are in another time zone; DEPENDING how you're looking at it. Two separate places will have their own time, and yet the two places are both on the same frame of time as far as the galaxy or universe sees it. That's why there is a popular phrase in Physics: "Time is relative'. It does not have one , nor two, definitions. People confuse speed with time, the same way they confuse light with the source that provides the light. Is a light bulb the light , or is it that stuff that's shining on the walls and floor?

@@RobCLynch Also... the theory about "Time slowing down" the further one travels in space, merely because they saw a watch slowing down, could most likely not be because time is literally slowing down, but the immense speed and pressure is causing the watch to malfunction; The same as it affects your heart and other organs. That's another thing think about if planning a deep deep space travel: CAN this vessel actually make it that far without succumbing to damage?

Not to mention, that the Earth would be destroyed

Blue has shorter wavelength / higher frequency than red. The light from receding galaxies becomes redder (red-shifted) because it is stretched out.