Doing the wet-dog wiggle

Hairy animals optimize shaking speed to shed water quickly

By Alexandra Witze, 15:50 PM October 22, 2010

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What does a wet dog have in common with a salad spinner? Plenty, according to mechanical engineers at the Georgia Institute of Technology in Atlanta.

When animals shake to rid themselves of water, they do so in the most dynamically efficient manner, just as a salad spinner strips most droplets off the romaine.

“The animals are shaking at optimal frequencies,” says team member David Hu. “I think it’s pretty amazing they can do that.” His team’s paper appears on, a...

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