How can you lie on a bed of nails without hurting yourself?
Ira is joined by physics educator Jack Netland to try for himself lying on a bed of nails, while Jack breaks a cinder block on Ira's chest. It's all about understanding the concept of mass and Newton's laws.
AIR DATE 11/1/86
Award-winning TPT series of science episodes produced from 1983-1998.
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