David G. Willey explains the physics behind four amazing demonstrations.
A family friend who teaches high school physics has been known to wow his students by lying between two beds of nails and having someone bust a concrete block on his chest. David Willey does that and more, and explains how the physics works.
Check him out: http://www.pitt.edu/~dwilley/bio.html
Friday, June 04, 2004
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