Basic Machines and How They Work by Naval Education and Training Program (Englis
25,67 €
Thorough, clear, and concise, this Navy training manual leaves nothing to be desired. Logically organized from simplest to most complicated, Basic Machines opens with a discussion of the lever. Moving on to discussions of the block and tackle (pulleys and hoists), wheel and axle, the inclined plane and the wedge, the screw, and different types of gears (simple, spur, bevel, herringbone, spiral, worm, etc.).
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