Find the area of the shaded figure
[258] Find the area of the shaded figure - Express result to the accuracy of 3 decimal. - #brainteasers #math - Correct Answers: 24 - The first user who solved this task is Sanja Šabović
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Find the area of the shaded figure

Express result to the accuracy of 3 decimal.
Correct answers: 24
The first user who solved this task is Sanja Šabović.
#brainteasers #math
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Two aliens landed in the Arizo...

Two aliens landed in the Arizona desert near a gas station that wasclosed for the night. They approached one of the gas pumps and the youngeralien addressed it saying, 'Greetings, Earthling. We come in peace. Take us to your leader.'
The gas pump, of course, didn't respond.
The younger alien became angry at the lack of response.
The older alien said, 'I'd calm down if I were you.'
The younger alien ignored the warning and repeated his greeting. Again, there was no response.
Annoyed by what he perceived to be the pump's haughty attitude, he drew his ray gun and said impatiently, 'Greetings, Earthling. We come inpeace. Do not ignore us this way! Take us to your leader or I will fire!'
The older alien again warned his comrade saying, 'You probably don'twant to do that! I really don't think you should make him mad.'
'Rubbish,' replied the cocky, young alien. He aimed his weapon at thepump and opened fire. There was a huge explosion. A massive fireball roared towards them and blew the younger alien off his feet and deposited him a burnt, smoking mess about 200 yards away in a cactus patch.
Half an hour passed. When he finally regained consciousness, he refocused his three eyes, straightened his bent antenna, and looked dazedly at the older, wiser alien who was standing over him shaking his big, green head.
'What a ferocious creature!' exclaimed the young, fried alien. 'He damn near killed me! How did you know he was so dangerous?'
The older alien leaned over, placed a friendly feeler on his crispyfriend and replied, 'If there's one thing I've learned during my intergalactic travels, you don't want to mess with a guy who can loop his pen*sover his shoulder twice and then stick it in his ear.'
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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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