Jason, If you want a little self contained display that is interactive you could use a high wattage AC light focused on a small 10 or 20 watt module. Put the light on a rheostat the kids can control. Use a computer fan to the module with a clear plastic tube sealed around it. Drop a ping pong ball in the tube. By varying the AC light intensity the ball rises and falls in the tube. If the tubing is sized properly the ball will rise up out of the tube at full fan speed and be suspended in mid air a couple of inches above the top of the tube because the spherical shape perfectly divides the rising column of air around the ball. It remains suspended above the tube perfectly and is guided back into the tube by the falling pressure of rising air surrounding it. A neat little display that lets kids (and adult kids) see instant cause and effect of the power of light. Nathan Jones Power Source Solar
------------------------------ On Wed, Dec 12, 2012 8:08 AM CST Jason Szumlanski wrote: >I have been approached by a local elementary school to develop a very small >PV related experiment or system that is appropriate for children aged 9-11. >Not having kids myself, I have no idea where to start with this. They are >fine with mounting a PV panel on the roof, wall, or ground. They want >something interesting and/or interactive that the students can monitor over >time. > >Has anyone done something like this that would be suitable? > >Jason Szumlanski >Fafco Solar _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
