The Best Tree in the World: Leaf Blowability, testing since 2004 (leaf coops, leaves, fans)

These three leaf coops were built to test the blowability of three trees' leaves. Each coop has a fan specifically chosen for the size and form of the leaves inside so as to test their blowability with the utmost efficiency and accuracy.

Coop 1 | Coop 2 | Coop 3