Professor Mole's Machines

Professor Mole's Machines The Amazing Pop-up Book of How Things Really Work!

John O'Leary2004
Each page uses pop-ups, lift-the-flaps, and other interactive designs to demonstrate to readers how simple machines and mechanics work. Readers follow Professor Mole as he explains how an elephant's weight makes a lift work, how rabbits pedaling quickly can make planes fly, and more.
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