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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 3741 times) |
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Children in Baltimore (1909) pull the stringy parts from beans in preparation for canning. Photograp
A typical pedestal grinder with a wire wheel on the left side and a stone wheel on the right side. ...