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visits member for 2 years, 9 months
seen Apr 12 at 17:59

Nov
27
answered Formation of black holes
Nov
27
asked How do formulas get figured out?
Sep
23
asked Normal force: up or down?
Sep
22
awarded  Editor
Jul
14
asked Resistance from voltage and charge
Jul
12
awarded  Student
Jul
11
awarded  Supporter
Jul
11
asked What exactly is a mole?