Sunday, November 09, 2008
windmill generator - fun science!
After our windmill generator outing last month we found a bunch of good books about wind power and have had some interesting conversations. When we found this science kit to build our own, we knew we had to try it!
This kit is to build a small windmill generator which, when the wind is blowing, will power an LED light attached to the bottom. The boys carefully followed the instructions to assemble the pieces.
When completed, we took it outside. The weather was perfect - cold and very windy. The instructions said it would take 15-25 mph winds to light the LED light (the goal, of course).
When it started whirring in the strong winds the light lit up! Woo hoo - very excited boys!
We weighed the two liter bottle a bit by adding sand in the bottom, and it can sit right outside our window so that we can watch it. I think the boys like it at night the best - the red glows so brightly it illuminates the sand below. Very cool!