01 02 03 Bike Darlington: Northwest Environment Watch Publications 04 05 15 16 19 20 21 22 23 24 25 26 27 28 31 32 33

Northwest Environment Watch Publications

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Northwest Environment Watch Publications: "Excerpt from Seven Wonders - Chapter one: 'The Bicycle'"

"Pound for pound, a person on a bicycle expends less energy than any creature or machine covering the same distance. (A human walking spends about three times as much energy per pound; even a salmon swimming spends about twice as much.)"
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