Thursday, November 17, 2005

How To Dip Fingers in Molten Lead

Hey, kids! Check this out:

From a 1999 issue of Skeptical Inquirer magazine: Physics instructor David G. Wiley shows how to walk on broken glass, dip your fingers into molten lead, and pick up as "orange-hot piece of space shuttle tile."

Before dipping one's fingers in molten lead, the hand is dipped in a bowl of water. Then the drops are shaken off and the hand dipped quickly in and out of the lead. I usually dip the first seven or eight centimeters of my fingers. Heat from the lead goes into evaporating the water and hence not into burning the hand, and the resulting steam layer insulates the hand.

TOTH to Mark Frauenfelder!




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