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Author Question: The distance between the ruled lines on a diffraction grating is 1770 nm. The grating is illuminated ... (Read 50 times) |
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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
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The average adult has about 21 square feet of skin.
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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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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.