Calculate the number 690
[182] Calculate the number 690 - NUMBERMANIA: Calculate the number 690 using numbers [7, 8, 4, 5, 10, 100] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 53 - The first user who solved this task is Sanja Šabović
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Calculate the number 690

NUMBERMANIA: Calculate the number 690 using numbers [7, 8, 4, 5, 10, 100] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 53
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Baseball in heaven

Two old men had been best friends for years, and they both live to their early 90's, when one of them suddenly falls deathly ill. His friend comes to visit him on his deathbed, and they're reminiscing about their long friendship, when the dying man's friend asks, "Listen, when you die, do me a favor. I want to know if there's baseball in heaven."

The dying man said, "We've been friends for years, this I'll do for you." And then he dies.

A couple days later, his surviving friend is sleeping when he hears his friend's voice. The voice says, "I've got some good news and some bad news. The good news is that there's baseball in heaven."

"What's the bad news?"

"You're pitching on Wednesday."

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X-10 nuclear reactor

In 1943, the X-10 nuclear reactor at the Oak Ridge National Laboratory went "critical" with a self-sustaining fission reaction - the world's second reactor to achieve one. The reactor took just nine urgent months to build. Over the next year, the reactor performed flawlessly, irradiating thousands of fuel slugs, which were disassembled and dissolved so the plutonium could be extracted, bit by precious bit. It was an experimental reactor far larger and more advanced than Fermi's Chicago pile: a graphite cube 24 feet on each side, with seven-foot-thick concrete walls for radiation shielding. By the end of 1944, the reactor's most urgent mission had been completed and its focus shifted to radioisotope production for medicine and research.[Image: X-10 control console]
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