SciShow Space

The Cosmic Lasers That Form in Outer Space (2020x41)

Ημερομηνία προβολής: Μάϊ 26, 2020

Lasers are incredible narrow beams of light we can use to do everything from cutting metal to operating on people's eyeballs. But even though we came up with the idea on our own, humans didn’t actually make the first lasers.