Physics Of Light.
Light is really fast. The speed of light in a vacuum is 186,282 miles per second. (299,792 kilometers per second), In theory nothing can travel faster than light. If you could travel on the speed of light, you could go round the Earth 7.5 times in one second. Now that is really really fast. Light takes 1.255 seconds to get from the Earth to the Moon. Sunlight can reach a depth of around 80 meters in the ocean.
|