Find number abc
[7898] Find number abc - If 6c567 + 66577 = 1b51aa find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 2
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Find number abc

If 6c567 + 66577 = 1b51aa find number abc. Multiple solutions may exist.
Correct answers: 2
#brainteasers #math
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An African lumberjack

An African lumberjack is interviewing for a job at a major logging company. The foreman decides to take a practical route and hands the lumberjack an axe.

"Take a couple swings at that tree over there." The foreman said.

The lumberjack walks over to the tree and fells it in a single chop.

"Holy smokes, you've got quite the arm! You're absolutely hired, but I need to know what you can do. Try your hand at this tree over here." The foreman points out a much larger tree.

One, two swings and the tree crashes to the ground.

"That's incredible!" Cried the foreman. "Wherever did you learn to chop like that?!"

"In the Sahara Forest." Replied the lumberjack.

"Don't you mean the Sahara Desert?" Asked the foreman.

"That's why I'm 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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