Ramps and WedgesBook - 1997
Uses a variety of examples, from scissors and axes to zippers and hairpin turns, to demonstrate the power of the inclined plane and show how ramps and wedges make work and play easier.
Publisher: Crystal Lake, IL : Rigby Interactive Library, c1997
Branch Call Number: J 621.8 GLO 3564
Characteristics: 24 p p :,ill ;,cm