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Author Question: According to the traditional square of opposition, the relation between Some octogenarians are ... (Read 355 times) |
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.