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Hagen von Eitzen
  • Member for 7 years, 5 months
  • Last seen more than a week ago
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About

I did study math and had a knack for it, but I am sooo out of that business now ...

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All Questions Answers
Score Newest
answer
3
Calculate the shadow on earth of a large orbital disk
Oct 3, 2019
answer
1
Why are these telescope mirror makers not upside down? (Daniel K. Inouye Solar Telescope)
Dec 7, 2020
Top network posts
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337
How can a piece of A4 paper be folded in exactly three equal parts?
218
Why is empty set an open set?
172
Can you be 1/12th Cherokee?
133
Is tipping mandatory at Restaurants and Bars in Germany?
108
Connected metric spaces with disjoint open balls

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