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Author Question: When checking combustion efficiency, which measurement should be taken first? A) Draft B) Smoke ... (Read 38 times) |
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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In 1864, the first barbiturate (barbituric acid) was synthesized.