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Small Inventions That Make a Big Difference
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from Natl Geographic Society (January 1, 1984)
9780870444982 | details & prices | 104 pages | List price $8.95
About: Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato chip.
About: Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato chip.
from Natl Geographic Society (January 1, 1984)
9780870445033 | details & prices | 104 pages | List price $12.50
About: Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato chip.
About: Describes how inventors think and work, explains how one invention--plastic--has changed the world, and briefly discusses seventy-five other important inventions, from the jet engine to the potato chip.