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Mark Eichenlaub's user avatar
Mark Eichenlaub's user avatar
Mark Eichenlaub's user avatar
Mark Eichenlaub
  • Member for 7 years, 6 months
  • Last seen more than 1 year ago
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I write physics courses at focused on problem solving at Art of Problem Solving. They range from introductory algebra-based courses to physics olympiad preparation.

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Top posts

12
How were the first American citizens granted citizenship?
Oct 15, 2018

Top network posts

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453
Fourier transform for dummies
322
Find five positive integers whose reciprocals sum to $1$
294
Why are mirror images flipped horizontally but not vertically?
135
Why doesn't the Moon fall onto the Earth?
126
Why am I not burned by a strong wind?