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Johannes

Theoretical physicist by training, PhD in spin-polarized quantum systems. Inventor of the DPD micro-hydrodynamics simulation methodology, and specialized in computational physics. Currently chief scientist for a major corporation. Blogger at Science2.0.

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  • Member for 7 years, 9 months
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  • Last seen Jul 21 at 16:29

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498 Visually stunning math concepts which are easy to explain Apr 1 '14
16 Problems that become easier in a more general form Aug 16 '14
11 Stars in the universe - probability of mutual nearest neighbors Jan 6 '13
11 Fibonacci cycles for finite groups Dec 14 '16
7 Sum of one, two, and three squares Jul 7 '13
6 Even bi-coloring of regular graphs Apr 30 '14
5 Binomial triplets Aug 16 '14
4 Given three integers in $\{0,\ldots,100\}$ which sum up to $100$. What is the probabilty that two of them are the same? Aug 9 '13
4 What is the Probability that a Knight stays on chessboard after N hops? Aug 10 '13
4 What's problematic about finding out if a large number is Prime or not? Apr 10 '16
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