If you know about complex numbers, you will be able to appreciate one of the great unsolved problems of our...

Continue reading...# harmonic series

## Sum of Prime Reciprocals

It is a well-known fact that the harmonic series (the sum of the reciprocals of the natural numbers) diverges. But what about...

Continue reading...## Inchworm on a Rubber Rope

Imagine a rubber rope one meter long. An inchworm starts at one end and travels along the rope at 1...

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