Thursday, April 22, 2010

nature's whirligigs

Step one: Plant maple seed.

Step two: Wait.

Step three: Obtain copious amounts of maple seeds in springtime.

Step four: Fling in air.

Step five: Repeat steps three, four and five.

[Make an autorotating helicopter out of paper, based on a maple seed](http://www.grc.nasa.gov/WWW/K-12/TRC/Aeronautics/Maple_Seed.html)