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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 4847 times) |
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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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.
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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.