What number comes next?
[4808] What number comes next? - Look at the series (7, 14, 42, 168, 840, ?), determine the pattern, and find the value of the next number! - #brainteasers #math #riddles - Correct Answers: 92 - The first user who solved this task is Djordje Timotijevic
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What number comes next?

Look at the series (7, 14, 42, 168, 840, ?), determine the pattern, and find the value of the next number!
Correct answers: 92
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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Electron microscope

In 1940, the first U.S. electron misroscope was demonstrated in Philadelphia, Pennsylvania. It was able to produce a magnification of 100,000 times, in an apparatus 10 feet high and weighing half a ton. The inventor was Dr. Vladimir Zworykin at the RCA laboratories, Camden, New Jersey.
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