What happens when you go faster then speed light

In summary, according to Einstein's theory of relativity, it is impossible to travel faster than the speed of light. As an object approaches the speed of light, its mass increases infinitely and time slows down. This results in a paradox where it would require infinite energy to reach the speed of light. Additionally, objects traveling faster than the speed of light would experience time going backwards, violating the laws of causality. Therefore, it is currently believed that the speed of light is the ultimate speed limit in the universe.
  • #1
scott1
350
1
http://www.physlink.com/Education/AskExperts/ae219.cfm
When high velocity particles travel faster than the speed of light in a medium they create a blue flash. This is called Cerenkov Radiation, why does this happen and why is it blue?
 
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  • #2
Do you have a question about it?
 
  • #3
If you want us to answer the question, it happens because the particle is decelerating, and the blue light you see is the light emitted from the energy lost in this process.
 
  • #5
abszero said:
If you want us to answer the question, it happens because the particle is decelerating, and the blue light you see is the light emitted from the energy lost in this process.
To abszero Could you explain more about this process ?
 
  • #7
No I just thought interesting
 

1. What is the speed of light and why can't anything travel faster than it?

The speed of light is approximately 299,792,458 meters per second in a vacuum. This is the fastest speed at which energy, information, or matter can travel. According to Einstein's theory of relativity, as an object approaches the speed of light, its mass increases infinitely and it requires an infinite amount of energy to accelerate it further, making it impossible to exceed the speed of light.

2. What would happen to an object if it were to travel faster than the speed of light?

If an object were to somehow exceed the speed of light, it would experience infinite mass and require an infinite amount of energy to continue accelerating. This would violate the laws of physics and is therefore considered impossible.

3. Can anything travel at the speed of light?

No, according to our current understanding of physics, nothing with mass can reach the speed of light. However, particles with no mass, such as photons, can travel at the speed of light.

4. Is there any way to go faster than the speed of light?

Currently, there is no known method or technology that would allow us to surpass the speed of light. Some theories, such as wormholes or warp drive, propose ways to travel faster than light, but they are purely hypothetical and have not been proven to be possible.

5. How does the concept of time change when an object approaches the speed of light?

According to Einstein's theory of relativity, time slows down for an object as it approaches the speed of light. This effect is known as time dilation and has been experimentally observed. As the object reaches the speed of light, time would essentially stop for it, making it impossible to travel any faster.

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