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When a teenager struggles to get up in the morning, that isn’t laziness; it’s biology. Matters are compounded in America by what The New York Times in an editorial called “a dangerous tradition: starting high school abnormally early.” According to the Times, 86 percent of U.S. high schools start their day before 8:30 a.m., and 10 percent start before 7:30. Later start times have been shown to produce better attendance, better test results, fewer car accidents, and even less depression and self-harm.
Nebraska’s huge ash deposits had been known about for a long time. For almost a century they had been mined to make household cleaning powders like Comet and Ajax.
A Short History of Nearly Everything
Bill Bryson
Using a method called combinatorial chemistry, chemists can generate forty thousand compounds at a time in labs, but these products are random and not uncommonly useless, whereas any natural molecule will have already passed what the Economist calls “the ultimate screening programme: over three and a half billion years of evolution.”
A Short History of Nearly Everything
Bill Bryson
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