[ad_1] For the past 2 centuries, scientists, surgeons, shipping companies, and shoppers have relied on a common system of measurements: the metric system. The basic units of this system have their origins …
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[ad_1] The new discovery is only 14 percent the size of the sun and is the new record holder for the star. It has the same heavy element as Mercury, the small …
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[ad_1] Bothriolepis, an armored, low-dwelling placoderm related to some of the earliest jawed vertebrates to appear in the record, lived mostly at the coasts. Credit: Nobumichi Tamura The first vertebrates on Earth …
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[ad_1] You could say that this is the ultimate price of science, to discover when, where and why humans have evolved. For a long time, the evidence was overwhelming that Homo sapiens …
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