Find the area of the shaded ...
[2485] Find the area of the shaded ... - Find the area of the shaded region accurate up to 3 decimal places. (a=10, b=8, c=6) - #brainteasers #math - Correct Answers: 122 - The first user who solved this task is Roxana zavari
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Find the area of the shaded ...

Find the area of the shaded region accurate up to 3 decimal places. (a=10, b=8, c=6)
Correct answers: 122
The first user who solved this task is Roxana zavari.
#brainteasers #math
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An idiot was taking sky-diving...

An idiot was taking sky-diving lessons. The instructor explained that it was time for his first jump, and all he had to do was jump from the plane, count to six, and pull the rip cord. A truck would be waiting for him in the field where he would land.
The man jumped from the plane when he was told to, and counted to six. When he pulled the rip cord, the parachute wouldn't open. He tried the reserve chute and that didn't open.
Frustrated, he muttered to himself as he fell, "I'll bet the damn truck won't be waiting for me either."
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X-ray movies

In 1936, the success in making of X-ray moving pictures of internal organs of the human body was reported at the 37th annual meeting of the American Roentgen Ray Society in Cleveland by Drs William H. Stewart, William J. Hoffman and Francis H. Ghiselin from the Manhattan, NY, Lenox Hill Hospital. They used a home 16-mm camera to film moving X-ray images on a fluorescopic screen at 16 frames per second (reduced to 12 or 8 fps for thicker bodies). Two seconds exposure could capture two or three beats of the heart, the act of breathing, movements of the diaphragm or motion of joints. Film clip loops could be projected to show repeating motion. Movies were shown at the next convention on 2 Oct 1937.«
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