How Did They Do That? by Caroline Sutton

How Did They Do That?

Caroline Sutton

384 pages first pub 1984 (editions)

nonfiction reference science informative slow-paced
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The totally satisfying answers to more than 100 questions that drive normal people—not to mention infomaniacs and trivia buffs—crazy.How did they know the size of the Earth over 1,700 years before anyone sailed around it?How did the FBI devise the...

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