3 Unbelievable Biggest Myths in Physics

2. MYTH: Nothing can go faster than light


Photo of Cherenkov radiation taken at the Reed Research Reactor, installed in Reed College, Portland, Oregon

Well actually, that is not totally true.

While light can move unimpeded at 299,792,458 meters per second in a vacuum, light goes a little slower when it travels through different substances. As an example, we have water or a diamond. Light moves 25% slower through water and 59% slower through diamond.

Particles like electrons, neutrons, or neutrinos can go faster than photons of light in such materials — though they have to bleed off energy as radiation when they do.

So what about light in vacuum ?

Even in vacuum, the expanding fabric of space once exceeded light-speed during the Big Bang, and scientists think wormholes and quantum entanglement might be able to “move” faster as well.


Sources: Georgia State University, Tech Insider


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