Powerful Machines 4 -- Simple Machines 6 -- Animal Power 8 -- Push Power 10 -- The Cotton Gin 12 -- Nature's Machine 14 -- Spring Power 16 -- Engines for Machines 18 -- A Giant of a Machine 20 -- Land, Sea, and Air Movers 22 -- Electric Machines 24 -- Working With Atoms 26 -- The Robot 28 -- Powerful Machines Quiz 30.
Summary
Discusses machines ranging from simple wedges and pulleys to electron microscopes and robots that build cars.