Calculate the number 4569
[8137] Calculate the number 4569 - NUMBERMANIA: Calculate the number 4569 using numbers [2, 7, 8, 5, 64, 473] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 0
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Calculate the number 4569

NUMBERMANIA: Calculate the number 4569 using numbers [2, 7, 8, 5, 64, 473] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
#brainteasers #math #numbermania
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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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Helium liquefied

In 1908, Kamerlingh Onnes made helium liquid at a temperature of 4.2 K (about -269 ºC). He had worked for many years to liquify this element which persisted as a gas to the lowest temperature. Using liquid air to produce liquid hydrogen and then the hydrogen to jacket the liquification apparatus, he produced about 60 cubic centimeters of liquid helium. The gas was liquefied by compressing it, cooling it below the inversion temperature and then allowing it to expand, which causes further cooling resulting in the liquefaction of some of the gas. At his cryogenic laboratory, he had previously liquefied air (1892) in large quantities, and built a large hydrogen liquefier (1906). Onnes received the Nobel Prize in 1913 for his low temperature work.
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