MATH PUZZLE: Can you replace...
[3689] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 56 - The first user who solved this task is Roxana zavari
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 56
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
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My memory

An agitated patient was stomping around the psychiatrist's office, running his hands through his hair, almost in tears.

"Doctor, my memory's gone. Gone! I can't remember my wife's name. Can't remember my children's names. Can't remember what kind of car I drive. Can't remember where I work. It was all I could do to find my way here."

"Calm down. How long have you been like this?"

"Like what?"

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Joseph Black

Died 6 Dec 1799 at age 71 (born 16 Apr 1728). Scottish chemist and physicist who experimented with "fixed air" (carbon dioxide), discovered bicarbonates and identified latent heat. He lectured in chemistry, anatomy at the University of Glasgow, while also a physician. From heated magnesia alba (magnesium carbonate), Black collected a gas, carbon dioxide, different from common air. He published Experiments Upon Magnesia Alba, Quicklime, and Some Other Alcaline Substances (1756). Carbon dioxide was also released by fermentation, respiration, and burning charcoal so he assumed it was in the atmosphere. He also observed that ice melts without change of temperature, due to heat that becomes "hidden" - latent heat - and determined "specific heat" for heated of materials.[DSB gives date of death 6 Dec 1799. EB gives 10 Nov 1799.]
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