What about this kid's idea? <br><br><a href="http://www.amnh.org/nationalcenter/youngnaturalistawards/2011/aidan.html" target="_blank">http://www.amnh.org/nationalcenter/youngnaturalistawards/2011/aidan.html</a><br><br>
<div><strong><a href="http://www.amnh.org/nationalcenter/youngnaturalistawards/2011/aidan.html" rel="nofollow" target="_blank">The Secret of the Fibonacci Sequence in Trees</a></strong> </div><span><a href="http://www.amnh.org/" rel="nofollow" target="_blank">www.amnh.org</a></span><h6 style="font-weight:normal">
<font size="2"><span>A
 thirteen year old boy from NY figured out an elegant and efficient 
solar collector design using the Fibonacci Sequence and his observations
 of winter trees.</span></font></h6><br>