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Author Question: An object 1.80 cm tall is placed 100 cm in front of a diverging lens having a focal length of ... (Read 62 times) |
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
The human body produces and destroys 15 million blood cells every second.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.