Calculate 1+3
[2385] Calculate 1+3 - If 3+4=19 and 5+6=41 then 1+3=? - #brainteasers #math #riddles - Correct Answers: 226 - The first user who solved this task is Roxana zavari
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Calculate 1+3

If 3+4=19 and 5+6=41 then 1+3=?
Correct answers: 226
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
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Sue reports for jury duty as o...

Sue reports for jury duty as ordered, and promptly asks to be excused because she believes she's prejudice.
"I took one look at those shifty eyes and that cheap polyester suit and I immediately knew that he was guilty as sin."
"Sit down," says the judge. "That's the prosecuting attorney."
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Safety lamp

In 1816, Sir Humphry Davy's safety lamp was first used in a coal mine. Deadly explosions had been a continual hazard caused by the flammable gas, methane, leaking out of the coal seams ignited by the flame of a miner's lamp. There had been previous attempts by others to make a safety lantern. Davy applied a scientific approach to determine the suitable fineness of wire gauze placed around the flame which would avoid ignition of flammable gas outside. He determined that the holes in the gauze should be less than 1/22 inch in diameter, and that the wire itself should be between 1/40 to 1/60 inch thick. Since the flame changed colour in the presence of methane, it also served as a warning to the miner to take protective action.«[Image: Davy safety lamp, circa 1816.]
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