Being as they are electrically propelled, I believe this is relevant:
http://www.cnn.com/2007/TECH/science/10/24/solar.race/index.html
_________________________________________________________________
Peek-a-boo FREE Tricks & Treats for You!
http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev