How far is a second?

The moon may be 1.3 light-seconds away, but why on earth do we measure distances using time? 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… Continue reading How far is a second?