More How Do They Do That? by Caroline Sutton

More How Do They Do That?

Caroline Sutton

256 pages missing pub info (editions)

nonfiction reference informative medium-paced

Description

Have you ever wondered: - How do they know how much an aircraft carrier weighs?- How do they get music onto a CD?- How does an electric eel generate electricity?- How do they know how long a second is?- How do penguins stay warm in Antarctica?- Ho...

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