What happens if you turn on a flashlight at the speed of light?
What happens if you turn on a flashlight at the speed of light? At any rate, the beam of light emitted by your flashlight would appear to reach the far wall instantly, as the speed of light is independent of your speed and would always be constant at about 300,000 kilometres per second in a vacuum.
How much is 1 year in space on Earth?
Time Dilation and Interstellar Space Flight That is, the spacecraft's clock would display less elapsed time than the clocks back on Earth. For extremely high speeds during a journey, the effect would be more dramatic. For example, one year of interstellar travel might correspond to ten years back on Earth.
Do wormholes exist?
While researchers have never found a wormhole in our universe, scientists often see wormholes described in the solutions to important physics equations. Most prominently, the solutions to the equations behind Einstein's theory of space-time and general relativity include wormholes.
What is the speed of dark?
Most of us already know that darkness is the absence of light, and that light travelsat the fastest speed possible for a physical object. So, what does this mean? In short, it means that, the moment that light leaves, darkness returns. In this respect,darkness has the same speed as light.