How lasers work (in theory)

How does a laser really work? It's Bose - Einstein statistics! (photons are bosons) Check out Smarter Every Day's video showing lasers in real life: http://bit.ly/uBwhU2 Trying out a new feature: English Transcript! Let me know how it works Tweet it - http://bit.ly/uZchvb Facebook it - http://on.fb.me/u4Yfvr minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Created by Henry Reich