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Calculate the number 960

NUMBERMANIA: Calculate the number 960 using numbers [3, 8, 6, 9, 83, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 20

The first user who solved this task is Thinh Ddh.

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Harry and Esther are out shopp...

Harry and Esther are out shopping one morning when Esther says, "Darling, it's my mother's birthday tomorrow. What shall we buy for her? She said she would like something electric."
Harry replies, "How about a chair?"

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Sir Thomas Lewis

Born 26 Dec 1881; died 17 Mar 1945 at age 63. Welsh cardiologist who has been called the “father of clinical cardiac electrophysiology.” He coined the terms “clinical science,” “pacemaker,” “premature contractions,” and “auricular fibrillation.” Thomas Lewis studied the human heart, and how it functions to maintain the flow of blood throughout the body. He performed research on blood vessels and pain. To assist his investigations, Lewis advanced the use of the electrocardiograph, originally developed by William Einthoven. They built on the knowledge of the electrical activity in muscle fibres began with the discovery by Luigi Galvani that electrical stimulation could cause movement in a dead frog's leg (1790). Lewis didn't hesitate to use himself as a test subject. Ironically, he died from a heart attack (his third one).«

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