What is black when you buy i...
[3119] What is black when you buy i... - What is black when you buy it, red when you use it, and gray when you throw it away? - #brainteasers #riddles - Correct Answers: 52 - The first user who solved this task is Djordje Timotijevic
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What is black when you buy i...

What is black when you buy it, red when you use it, and gray when you throw it away?
Correct answers: 52
The first user who solved this task is Djordje Timotijevic.
#brainteasers #riddles
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Discussing The Tax Rates

A visitor from Holland was chatting with his American friend and was jokingly explaining about the red, white and blue in the Netherlands flag.
"Our flag symbolizes our taxes," he said. "We get red when we talk about them, white when we get our tax bill, and blue after we pay them."
"That's the same with us," the American said, "only we see stars, too."
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James Beaumont Neilson

Died 18 Jan 1865 at age 72 (born 22 Jun 1792).Scottish inventor who introduced the use of a hot-air blast instead of a cold-air blast for the smelting of iron. His process reduced the amount of coal needed and increased efficiency to satisfy the demands of the rail and shipbuilding industries. While manager of the Glasgow Gas-works, he had experimented with the effect of heated air on the illuminating power of gas, by bringing up a stream of it in a tube so as to surround the gas burner. He found the combustion of the gas was more intense and brighter. Then, experimenting on a common smith's fire, by blowing the fire with heated air, the effect was the same; the fire was much more brilliant, and accompanied by an unusually intense degree of heat. In 1828, he patented his hot blast method for smelting.[Image: typical layout 1870's hot air blast furnace]
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