He's making a, kind of, cheek flapping sound.

My talk is Flapping Birds and Space Telescopes.

What does that mean for the origin of flapping flight?

And this is you can see this is a flapping bird.

And here he is, flapping with his ears and very gracefully going up.

They fly, not with rotating components, so they fly only by flapping their wings.

Most people think they know what origami is. It's this flapping birds, toys, cootie catchers, that sort of thing.

We're working on projects now even wing flapping things the size of hawk moths DARPA contracts, working with Caltech, UCLA.

She stopped about 10 feet away from me, and she sat there with this penguin, the penguin's flapping, and she let's it go.

Did they not see the birds above them, stretching out, and flapping their wings. No one keeps them up in the sky except the Beneficent God. He certainly watches over all things.

Did they not see the birds above them, stretching out, and flapping their wings. No one keeps them up in the sky except the Beneficent God. He certainly watches over all things.

The one final bit of sparkle we'll put in at the very end here is an utterly impractical flight vehicle, which is a little ornithopter wing flapping device that rubber band powered that we'll show you.

So we looked at the birds, and we tried to make a model that is powerful, ultralight, and it must have excellent aerodynamic qualities that would fly by its own and only by flapping its wings.

Plenty of robots can fly but none can fly like a real bird. That is, until Markus Fischer and his team at Festo built SmartBird, a large, lightweight robot, modeled on a seagull, that flies by flapping its wings. A soaring demo fresh from TEDGlobal 2011.

Lack of stimulation often leads to self stimulating behaviors like hand flapping, rocking back and forth, or aggression, and in some institutions, psychiatric drugs are used to control the behavior of these children, whilst in others, children are tied up to prevent them from harming themselves or others.

An insect's ability to fly is perhaps one of the greatest feats of evolution. Michael Dickinson looks at how a common housefly takes flight with such delicate wings, thanks to a clever flapping motion and flight muscles that are both powerful and nimble. But the secret ingredient the incredible fly brain.

Another time, when our path took us by a tranquil stream, I saw a man sitting and watching his line, seemingly at peace with the world, while next to him, fish he had already caught were flapping helplessly and gasping in the air. My father told me that he could not understand how anyone could enjoy an afternoon spent taking fish out of the water and letting them die slowly.