Cherenkov Radiation is a sonic boom for light

When a plane goes faster than the speed of sound, those around it hear a resounding crack that's called a sonic boom. When particles go faster than the speed of light, those around them see a special glow. This is called Cherenkov Radiation. And it's a lot prettier than a sonic boom. » 9/29/12 10:00am 9/29/12 10:00am