People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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There are 60,000 miles of blood vessels in every adult human.
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The average adult has about 21 square feet of skin.
A typical ball-peen hammer.
A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ...
A typical large tool box, showing just one of many drawers.
A typical 1/2 inch drive air impact wrench. The direction of rotation can be changed to loosen or ...
A typical belt-driven AIR pump. Air enters through the revolving fins behind the drive pulley. The ...
Writers, readers, and erasers of the CTD phosphorylation code