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Author Question: Bell Telephone Laboratories invented the ________, which replaced the vacuum tube. (Read 224 times) |
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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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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The longest a person has survived after a heart transplant is 24 years.