Replace the question mark with a number
[4162] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 104 - The first user who solved this task is Rutu Raj
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 104
The first user who solved this task is Rutu Raj.
#brainteasers #math #riddles
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Two Roaches Discussion

Two roaches were munching on garbage in an alley when one engages a discussion about a new restaurant.
"I was in that new restaurant across the street," said one. "It's so clean! The kitchen is spotless, and the floors are gleaming white. There is no dirt anywhere--it's so sanitary that the whole place shines."
"Please," said the other roach frowning. "Not while I'm eating!"

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Ralph Wyckoff

Died 3 Nov 1994 at age 97 (born 9 Aug 1897). Ralph (Walter Graystone) Wyckoff was an American scientist, a pioneer in the application of X-ray methods to determine crystal structures and one of the first to use these methods for studying biological substances. He became famous in two areas of structural research: X-ray diffraction and electron microscopy. He developed a new technique of 'metal shadowing' for observation with the electron microscope. A specimen, such as a virus, is placed in a vacuum together with a heated tungsten filament covered with gold. Vaporized gold coated the side of the specimen nearest the filament, leaving a 'shadow' on the far side. This allowed better estimates to be made of their size and shape, as well as revealing details of their structure.
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