So How Does the Horizontal Spinning Blade On a Helicopter Propel It Forward? [Video]

Just because it's the weekend doesn't mean you have to switch your brain off completely. Smarter Every Day continues its video series on the physics behind helicopters with a look at how choppers use something called a swashplate to vary the pitch of its rotor blades to climb higher and fly in any direction. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/3wfOIwx0r8s/so-how-does-the-horizontal-spinning-blade-on-a-helicopter-propel-it-forward

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