MATH PUZZLE: Can you replace...
[3586] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 158 - The first user who solved this task is Allen Wager
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 158
The first user who solved this task is Allen Wager.
#brainteasers #math #riddles
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old man goes to the Dr ...

An 85-year-old man was requested by his doctor for a sperm count as part of his physical exam. The doctor gave the man a jar and said, "Take this jar home and bring back a semen sample tomorrow."

The next day the 85-year-old man reappeared at the doctor's office and gave him the jar, which was as clean and empty as on the previous day. The doctor asked, what happened and the man explained. "Well, doc, it's like this--first I tried with my right hand, but nothing. Then I tried with my left hand, but still nothing. Then I asked my wife for help. She tried with her right hand, then with her left, still nothing. She tried with her mouth, first with the teeth in, then with her teeth out, still nothing. We even called up Arleen, the lady next door and she tried too, first with both hands, then an armpit, and she even tried squeezin' it between her knees, but still nothing."

The doctor was shocked! "You asked your neighbor?" The old man replied, "

Yep, none of us could get the jar open."

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Spectrophotometer

In 1935, the first U.S. patent for a spectrophotometer was issued to Professor Arthur Cobb Hardy of Wellesley, Mass. (No. 1,987,441) which he called a “photometric apparatus.”It could detect two million different shades of colour and make a permanent record chart of the results. The patent was assigned to the General Electric Company of Schenectady, N.Y. which sold the first machine on 24 May 1935. It used a photo-electric device to receive light alternately from a sample and from a standard for comparison. It eliminated any need for the two beams (from sample and from standard) to travel different optical paths which in previous designs could introduce inaccuracies if one path varied from the other.«[Image: a "GE-Hardy" double-beam recording spectrophotometer photographed in 1938 showing Walt Disney with the instrument at his studios.]
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