Calculate the number 1022
[8046] Calculate the number 1022 - NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 1022

NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Lines

One day, there was a catastrophic event that caused all humans on Earth to die. To sort things out, everyone went to Heaven. God came in and said,
"I want the men to make two lines.
One line for the men who ruled their women on Earth and the other line for the men who were ruled by their women. Also, I want all the women to go with St. Peter." With that, the next time God looked, the women were gone and there were two lines.
The line of men who were ruled by their women was 1000 miles long, and in the line of men who ruled their women, there was only one man.
God became angry and said, "You men should be ashamed of yourselves. I created you in my image and you were all whipped by your mates. Look at the only one of my sons who stood up and made me proud. Learn from him!
Tell them, my son, how did you manage to be the only one in this line?"
The man replied, "I don't know, my wife told me to stand here."   

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Liquifaction of oxygen

In 1879, the liquefaction of oxygen was announced by Raoul Pierre Pictet (1846-1929), a Swiss chemist and physicist, by sending a telegram to the French Academy: Oxygen liquefied today under 320-atm and 140 degrees of cold by combined use of sulfurous and carbonic acid. French physicist Louis Cailletet made a similar announcement two days later. Pictet's early interest was in ice-making machines. Later, he studied extremely low temperatures and the liquefaction of gases. Both Pictet and Cailletet used both cooling and compression to liquefy oxygen but they achieved this using different techniques. Pictet's method had an advantage in that produced the liquid gas in greater quantity and was easier to apply to other gases.[Image: part of a Pictet machine to cool down glycerine, which was pumped through a piping system in the first artificial skating track:]
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