Find number abc
[5420] Find number abc - If 9c1bb - 665b5 = a1602 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 37 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If 9c1bb - 665b5 = a1602 find number abc. Multiple solutions may exist.
Correct answers: 37
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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A Kiwi was hoping to immigrate...

A Kiwi was hoping to immigrate to Australia.
Upon arriving in Australia, he was questioned by a customs officer,
"What is your business in Australia?"
"I wish to immigrate," was the Kiwi's reply.
The customs officer then asked,
"Do you have a conviction record?"
Confused, the Kiwi then replied,
"I didn't think you still needed one."
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Liquid oxygen

In 1877, Louis-Paul Cailletet (1832-1913) became the first to liquefy oxygen. Shortly after, he also was first to liquefy nitrogen, hydrogen, nitrogen dioxide, carbon monoxide, and acetylene. Cailletet realized that the failure of others to liquefy the permanent gases, even under enormous pressures, was explained by Thomas Andrews's concept of critical temperature. He succeeded in producing liquid oxygen by allowing the cold, compressed gas to expand, depending on the effect discovered by Joule and Thomson, that cooled the gas to below its critical temperature. In later experiments he liquefied nitrogen and air. Raoul Pictet, working independently, used a similar technique. He also invented the altimeter and the high-pressure manometer.Image: Cailletet's Liquefier.
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