What is a Neutrino?

Neutrinos are the vampires of physics. Tweet it - http://bit.ly/sJgKV0 Facebook it - http://on.fb.me/rPfLOA 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