Flying Circus of Physics

For a truly enjoyable learning experience visit:

http://www.flyingcircusofphysics.com/index.aspx

DIY Helicopter

http://www.popsci.com/military-aviation-amp-space/article/2009-08/will-chinese-farmers-diy-helicopter-fly

A Chinese farmer is awaiting government approval to launch his $1,600 DIY helicopter. Gives me an idea...