A Little Riff on Lasers
LASERS:
laser tag, laser eye surgery, laser pointers, laser-guided missile systems, laser welding, laser detection of gravitational waves, the laser in your CD player, laser spectroscopy, laser rangefinders…
Try THAT next time you have to argue for funding of basic research. Do you think Einstein had your hypothetical future CD player in mind when he was playing with the idea of spontaneous and induced emission?
