# What travels as fast as the speed of light?

## What travels as fast as the speed of light?

Albert Einstein’s special theory of relativity famously dictates that no known object can travel faster than the speed of light in vacuum, which is 299,792 km/s. This speed limit makes it unlikely that humans will ever be able to send spacecraft to explore beyond our local area of the Milky Way.

## What other particles travel at the speed of light?

All massless particles always travel at a speed represented by the letter c, whereas massive particles can travel at any speed between zero and c. Since photons are massless, they travel at c, which is called the speed of light because the photon was the first known example of a massless particle.

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What happens to time when you travel at the speed of light?

For that person, time would move slower than for someone who is not moving. For example, if a person is traveling at 90\% of the speed of light, then that person would experience only 10 minutes of time passing, while a stationary person would have experienced 20 minutes. Time will be cut in half!

### How do you calculate the speed of light in seconds?

Speed of light calculator for the distance per time or time per distance. distance = speed of light * time. s = c * t. Please enter distance or time, the other value will be calculated. One year is counted as 31557600 seconds (365 1/4 days).

### What does it mean if the speed of light is 10\%?

It means that if an object moves at a velocity that is 10\% of the speed of light, then it would experience an increase in its mass by 0.5\% of its original mass.

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What would happen to a person who travels at a different speed?

Short answer: For one, the person traveling at such a speed would experience a slowing of time. For that person, time would move slower than for someone who is not moving. Another thing is that your field of vision would change drastically.