http://ohgizmo.disqus.com/enMon, 17 Jul 2006 01:52:53 -0000http://www.ohgizmo.com/2006/07/16/playpumps/#comment-1758405what i especially love about this concept is that its so simple, it works! self-sustaining and fun to use.<br><br>i wonder if the same can be done for electricity where you can store energy into a huge battery.jayvee f.Mon, 17 Jul 2006 01:52:53 -0000http://www.ohgizmo.com/2006/07/16/playpumps/#comment-1758404There was actually a PBS special on the PlayPumps. You can actually watch it online at: <a href="http://www.pbs.org/frontlineworld/rough/2005/10/south_africa_th.html" rel="nofollow">http://www.pbs.org/frontlineworld/rough/2005/10...</a>BrianMon, 17 Jul 2006 00:31:46 -0000