# If the universe is expanding at close to the speed of light, when it reaches this speed, will time reverse? Related Questions

If the universe is expanding at close to the speed of light, when it reaches this speed, will time reverse?

what I want to know is will time reverse it's self as the speed of the expansion continues to increase, if it does and things unfold in just the opposite order of which they originally occurred, will death become life?

How is it that the universe is expanding faster than the speed of light?

From what I understand of relativistic physics, the speed of light is constant in all inertial frames of reference. How then can something be moving faster than c? Isn't there also a spacetime dilation with something moving at close to the speed of light? How is spacetime affected with something traveling faster than the speed of light (which it seems spacetime is doing with dark energy.)

If I am understanding these Lorentz transformations properly, at the speed of light... space and time distortion become so immense that distance traveled and time experienced reaches 0. Meaning light witnesses the universe still as a timeless singularity. How then is then expanding faster than 0 time? Is the universe working backwards in time?

Can the universe contract at speed faster than speed of light?

If universe were to slow down, stop, and start contracting, can it contract faster than the speed of light. If so, how much of a blue shift will we see from the photons? Would it blue shift into the gamma range?

How close can we get to the speed of light?

If we have a train 1 which moves at speed c/2 and there is a toy train 2 on board train 1 which also moves at speed c/2 wrt the car of train 1, and there is toy train 3 which also has velocity c/2 wrt train 2, and so on and toy train 100 runs at speed c/2 on board train 99.

What is the rate of increase of distance between train 100 and a flash of its headlights as measured by observer at the station?

How close are we to being able to have a human travel at the speed of light?

How much slower is the speed of heavy than the speed of light? I need to know for a science project.?

Does light travel at the speed of time?

the concept that time stops when you travel at the speed of light is something Iv'e never agreed with. but, what if light was instant and because you can't travel faster than time, because then time must go backwards, perhaps light travels at the speed of time. I belive this makes more sense than the idea of not being able to travel at the speed of light. it's just like traveling along the motorway at 60mph, you drive next to another car traveling at 60mph, the car seems to be still. time must have a speed if the universe is expanding, but if all this is true the universe must be expanding at the speed of time (speed of light).

We know the speed of light then what is the speed of dark ?

Since there is a speed of light, is there a speed of dark?

9. A 0.140-kg baseball is dropped and reaches a speed of 1.20 m/s just before it hits the ground...?

A 0.140-kg baseball is dropped and reaches a speed of 1.20 m/s just before it hits the ground. It rebounds with a speed of 1.00 m/s. What is the change of the ball's momentum?

A. 0.0280 kgm/s upwards
B. 0.0280 kgm/s downwards
C. 0.308 kgm/s upwards
D. 0.308 kgm/s downwards

If light was propagating at infinitely fast speed, by how much time would the sunrise be delayed?

Speed 18-speed bicycle, 27 speed mean? How to judge a car is a 18 speed or 27 speed?

Speed 18-speed bicycle, 27 speed mean? How to judge a car is a 18 speed or 27 speed?

May I ask what is the engine speed, speed and vehicle speed and the shifting relationship between what is?

May I ask what is the engine speed, speed and vehicle speed and the shifting relationship between what is?

They say that the Universe is constantly expanding, but I want to know what its expanding into!?

Also, what was there before the big bang?

If the universe is expanding, what the heck is it expanding into?

Isn't the universe supposed to be everything?