Calculate the number 819
[7340] Calculate the number 819 - NUMBERMANIA: Calculate the number 819 using numbers [8, 5, 2, 8, 40, 649] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 2
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Calculate the number 819

NUMBERMANIA: Calculate the number 819 using numbers [8, 5, 2, 8, 40, 649] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
#brainteasers #math #numbermania
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Poison

A man goes to see the Rabbi. "Rabbi, something terrible is happening and I have to talk to you about it."
The Rabbi asked, "What's wrong?"
The man replied, "My wife is poisoning me."
The Rabbi, very surprised by this, asks, "How can that be?"
The man then pleads, "I'm telling you, I'm certain she's poisoning me. What should I do?"
The Rabbi then offers, "Tell you what. Let me talk to her. I'll see what I can find out and I'll let you know."
A week later the Rabbi calls the man and says. "I spoke to your wife...spoke to her on the phone for three hours. You want my advice?"
The man said yes, and the Rabbi replied, "Take the poison!"    

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Californium coal monitor

In 1969, the use of californium-252 radioactive material in monitoring the sulphur content of coal was announced by the Atomic Energy Commission. Using this intense neutron source to measure the sulphur content of coal, as it moved on a conveyor belt through a coal processing plant, would enable better control of the air pollution caused by burning coal. When coal is burned, for example at electrical power plants, its sulphur is released as sulphur dioxide, a pollutant which needs to be reduced, because it contributes to acid rain. In turn, this results in acidified soils, forest damage and building corrosion. A shipment of 18 micrograms of the isotope had been sent from its Savannah River plant to South Carolina to the Bureau of Mines research centre at Morgantown, West Virginia. (A microgram is one millionth of a gram.)«
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