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Did you know?
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).
Did you know?
In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.