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Biology
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Holding his half-full gourd of “chicha,” Walter Lewis smiles, wishing he didn’t have to drink another drop. It tastes so sour, like a combination of yogurt, warm beer and mashed potatoes. But the headman — the apu of the Achuar Jivura village in the Peruvian Amazon jungle — is looking him right in the eye. To refuse this friendship ceremony drink would be an insult to his hosts. Lewis... |
featured question
Q: Why doesn't a person lose 9 lb when they consume 1 litre of ice water? If a calorie is the energy it takes to raise 1 cc of water 1 deg C then to raise 1000cc's from 0C to 33C would require 33,000 calories. I'm lead to believe that you must expend 3600 calories to lose 1 lb of body weight. Ignoring the temporary gain of 2.2 lbs water weight, why doesn't drinking 1 litre of ice water result in an expenditure of the caloric equivalent of 9 pounds of weight?
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