'(<a href="http://www.j-archive.com/media/2006-07-25_DJ_26.wmv">Jon of the Clue Crew reports from the Exploratorium, San Francisco, CA.</a>)  Spinning the tank of water creates this geometric curve, because less force is needed to hold the center down than the edges'
a parabola
SCIENCE AT THE EXPLORATORIUM: Spinning the tank of water creates this geometric curve, because less force is needed to hold the center down than the edges
Spinning the tank of water creates this geometric curve, because less force is needed to hold the center down than the edges
Spinning the tank of water creates this geometric curve, because less force is needed to hold the center down than the edges
SCIENCE AT THE EXPLORATORIUM
a parabola
SCIENCE AT THE EXPLORATORIUM