Awasome What's The Speed Of Light Ideas. Einstein's theory of special relativity sets of the speed of light, 186,000 miles per second (300 million meters per second), as a cosmic speed limit. From galileo to today, how physicists have measured and modified the speed at which light travels.

Web we all know and love the speed of light — 299,792,458 meters per second — but why does it have the value that it does? According to special relativity, c{\displaystyle c}is the maximum speed at which all energy, matter, and physical information in the universe can travel. Web a brief history of the speed of light.