The air friction heated parts of the shuttle to 3,000 degrees, as would be expected.

If Vincent's hand had gone up any faster it would have fried by air friction.

The bird is very stream lines and their feathers also tend to reduce air friction.

They are high enough in the atmosphere where air friction is so extremely small that they do not burn up.

After a few minutes, the top falls when air friction slows it below the critical speed.

The old relic he was flying had become heated from air friction.

Most of its spin had by now been lost to air friction, dave-the Chairman?

The bottom line is initial velocity and air friction are very important factors.

I told them about air friction, and heat.

Finally, even before it reached the valley floor, the coin disappeared, dissolved into nothing by air friction.