We Have No Idea by Jorge Cham

Author:Jorge Cham
Language: eng
Format: epub, azw3
Publisher: Penguin Publishing Group
Published: 2017-04-18T12:31:15+00:00

It won’t help your dreams of starting your own colony on a distant planet and enshrining yourself as god of your own solar system, but it does make for some pretty snazzy effects. When a speedboat moves along the surface of a lake faster than the waves it makes in the water, those waves add up to make a wake. If an airplane travels faster than the speed of sound, it creates a shockwave of air called a sonic boom. What happens when a muon travels faster than light through a block of ice? It creates a light boom! This is also known as Cherenkov radiation, and the faint blue rings of light generated by this boom are routinely used by physicists to detect such particles and measure their speed.

So if the entire universe suddenly filled up with cosmic chicken soup (or ice), then technically it would be possible to travel through it faster than light and emit glowing blue rings all the way to your new home.

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