Natural Anemometers to Reforest the City

posted by Susan on 2010.04.02, under Alternative Measures
02:

These maple seeds will spin with the slightest breeze (see the image to the right of the blog header).  I have shortened the stems and placed them in hollow metal tubes.  If winds are gusting over 15 mph they will lift out of the tubes and spin into the air with the anticipation of finding fertile ground in which to take root.

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