Travel Back In Time?

Question

To start, this is no debate as to whether or not going faster than the speed of light is possible. In that case, when scientists say time travel, do they mean you catch up with other beams of light? In that case, if you somehow surpass light speed, can you see what was before? (Such as dinosaurs or the creation of earth) This would undoubtedly take millions if not billions of years to do, but it seems possible if the speed of light is broken. For Example; Let's say you flicker on a laser and keep it on for five seconds. then you turn it off. If you somehow zoom forward in the direction of the beam and you travel over 186000 m/s, can you see that laser beam, even though the laser was turned off before you began moving?

Answer 1

At such close proximities between the object (A) and the laser beam source (B), physics law would require A to move FASTER than 186,000 m/s--something Einstein's Relativity law forbids happening.

This feat gets easier to do AT the speed of light---given there's considerable distance between the two objects, interestingly enough.

When we look out in the night sky and see stars on a clear cloudless night, we're seeing the light emitted from that star millions and billions of years ago.  If we were to construct a ship to travel light speed in space, and head directly to that star via bending space ( a REAL probability ) and "hyperjumping" distance to that star's actual location.....we might likely see......that star.....has long since been gone; likely destroyed by a black hole.

But the folks back home, tracking that very same star still see the light emitting from it!!  We've disappeared, likely presumed dead.  And even though we've Earth time been gone perhaps a week, we arrive at that star and detonate an epic explosion.  The light from that explosion won't reach Earth for 214 billion years---everyone close to us has long since died.

Answer 2

Mr. wizard has it ALLL right..

i just want to clear something...when people think of time travel,they think that they can go back in time and live that past and try to change it......NOOOOOOOOOOOOO...

NEVER POSSIBLE..

whenever some event happens, the light reflecting off the objects carries the image ... and we see the event when the light falls into our eyes....  so the light simply acts as a video tape that recorded the event and just carries it around...

if u can travel faster than the light beams and see them ...u will simply see the event as if you are watching a movie in ur TV, u can never change ANYTHING in it !!!

Answer 3

according to physics its not possible even if you moved faster then the light itself you could never outrun it to actually see it

say you was traveling the speed of light and turned on a flashlight physic show the light of the flashlight would actually shine off in front of you so you will never outrun the light and pass it in order to look back at it to see what has already happened

Answer 4

why would you go back in time a super sonic jet is fast but it doesn't change anything on earth i don't get how by going fast you go back in time or go forward you just go faster than light