What would happen if a person moved twice as fast as light
Albert Einstein’s theory is one of the best theories we have at this time. This theory states that the speed of light is a universal limit for anything with mass.
Relativity tells us, specifically, that nothing mass-containing can accelerate beyond the speed of light.
Add energy to an object that has mass. The more power you need, the faster the thing will move.
According to the equations of relativity, anything with mass would need an infinite amount of energy to accelerate to light speed.
All of our sources of energy are finite or limited.
The Universe may contain only a finite quantity of energy. This would mean that there’s not enough energy in the Universe for something to accelerate up to the speed of light.
You and I both have mass. Don’t expect to travel at twice the speed of light any time soon.
Einstein said that nothing, including a human or an object, could accelerate faster than light. Shutterstock
The universal speed limit is for anything that has a mass of “ordinary mass.”
However, there are hypothetical particles known as tachyons that have a type of mass called an “imaginary mass.”
Tachyons do not exist. According to relativity, the possibility of their existence cannot be ruled out.
Tachyons, if they exist, must always travel faster than the speed at which light is traveling. As something of ordinary mass cannot be accelerated beyond the rate at which light travels, tachyons also can’t slow down below that speed.
Physicists think that if there were tachyons, they would constantly be traveling backward through time. Many science fiction novels and movies associate tachyons with time travel.
One day, we may harness tachyons in order to construct a time machine. This is still a far-off dream as we cannot detect tachyons.
Read more: Curious Kids: Is Time Travel Possible for Humans?
We can’t go faster than light. The Sun is the nearest star, but it’s 4.35 light-years away. If you were to travel at the speed of light, it would be more than four years before you reached your destination.
You can now give up trying to chart the entire Universe.
The relativity of space-time allows for ” wormholes” to exist.
A wormhole can be used to travel between two points in the Universe. A star that is 4.5 light-years away could be only a few hours via a wormhole.
If any wormholes actually existed, we could travel great distances very quickly – and even reach the outermost reaches of our Universe in one lifetime.
Wormholes are also a hypothetical concept, just like tachyons.
A wormhole can be thought of as a tunnel that has two ends and opens up at different points in the spacetime continuum. Shutterstock
We can imagine the experience of traveling faster than light despite the fact that we cannot do it.
We are engaged in ” Counterfactual Thinking” by thinking this way. Consider what the world would be like or how it might look if something were to change.
We could explore many possibilities, each with its own set of physical laws.
We can’t know with certainty what would happen if we could travel faster than the speed of light. We can only guess at what may occur. Were we to start traveling back in time as some scientists believe tachyons could do?
You and your imagination will have to come up with some creative ideas.