In this series of highly educational videos on helicopter physics, Youtuber Smarter Every Day teaches us some of the basics behind how helicopters work. I highly recommend that you geeks subscribe to this guy’s Youtube channel because… well… he’s absolutely brilliant!
Helicopter Physics Intro
Collective-Cyclic Pitch Mixing (Upside Down Flying)
Gyroscopic Precession (Helicopters are Gyroscopes)
[Smarter Every Day | Helicopter Picture from BigStockPhoto.com]