Calculate product...
[1731] Calculate product... - Calculate product of four consecutive prime numbers with the sum of 220. - #brainteasers #math - Correct Answers: 53 - The first user who solved this task is Sanja Šabović
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Calculate product...

Calculate product of four consecutive prime numbers with the sum of 220.
Correct answers: 53
The first user who solved this task is Sanja Šabović.
#brainteasers #math
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Aren't you afraid of me?

One bright, beautiful Sunday morning, the townspeople were in church, listening to the organ play. Suddenly, Satan appeared at the front of the church. Everyone started screaming and running for the front entrance, trampling each other in a frantic effort to get away from evil incarnate.

Soon everyone was evacuated from the Church, except for one elderly gentleman who sat calmly in his pew, not moving, seemingly oblivious to the fact that God's ultimate enemy was in his presence. Now this confused Satan a bit, so he walked up to the man and said, "Don't you know who I am?" The man replied, "Yep, sure do." Satan asked, "Aren't you afraid of me?"

"Nope, sure ain't," said the man.

Satan was a little perturbed at this and queried, "Why aren't you afraid of me?"

The man calmly replied, "Been married to your sister for 48 years!"

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Donald B. Keck

Born 2 Jan 1941.American research physicist, who with his colleagues at Corning Glass, Dr. Robert Maurer and Dr. Peter Schultz, invented fused silica optical waveguide - optical fiber. This was a breakthrough creating a revolution in telecommunications, capable of carrying 65,000 times more information than conventional copper wire. In 1970, Maurer, Keck, and Schultz solved a problem that had previously stumped scientists around the world. They designed and produced the first optical fiber with optical losses low enough for wide use in telecommunications. The light loss was limited to 20 decibels per kilometer (at least one percent of the light entering a fiber remains after traveling one kilometer).
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