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Friday, October 06, 2006

Why Woodpeckers dont get a headache!


Ever wondered why Woodpeckers dont get a headache after vigorous rounds of hitting their beaks against hard wood. Well somebody actually has done some research on this and results are here

One factor in minimizing the impact is that, as in all birds, a woodpecker's brain is much smaller (both absolutely and proportionately) than a human's. Because surface area increases with the square of the linear dimension while mass increases with the cube, impact forces are spread over a relatively greater area, which alone makes the woodpecker 50 to 100 times less vulnerable to impact than a human would be.


Now you know!