Find number abc
[7832] Find number abc - If 99ba2 - b7909 = 8b2c3 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 2
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Find number abc

If 99ba2 - b7909 = 8b2c3 find number abc. Multiple solutions may exist.
Correct answers: 2
#brainteasers #math
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Lady trying to catch a ride

A woman comes home early, and finds her husband in bed with a girl.

She is furious, threatens to kill them both... the husband says:

- Believe me, darling, this is just a misunderstanding. I was driving home, and saw this young lady trying to catch a ride. So I decided to give her a lift. I ask her where she needs to go, and she tells me she wants to visit some relatives, but isn't sure about their address. So, I took her home so she could check our phonebook.

- Once there, I saw her dress is pretty ragged, so I decided to give her your old dress. Nearly two years that it's been hanging in the closet, and you never wore it.

- Then, I saw her shoes are also about to fall apart, so I gave her your old shoes, which have been doing nothing but collecting dust for three years. Of course, she said thanks, and then asked:

"Excuse me sir, but is there anything else in this house your wife never uses?"

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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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