Did you know?
Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Did you know?
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
Doctors in China pray before operating
This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev
Competitive enzyme immunoassay. (a) Shows the uninhibited reaction and (b) shows the inhibited ...
Effects of competitive inhibition on enzyme kinetics
When operating your own business, it is wise to know your cost of capital and that of the ...
Calculating the area of a circular ring