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visits member for 3 years, 8 months
seen Dec 19 '11 at 20:33

Dec
18
awarded  Editor
Dec
18
revised How does gravity work underground?
imroved formatting
Dec
18
suggested approved edit on How does gravity work underground?
Dec
17
awarded  Supporter
Dec
17
answered Physical interpretation of Wheeler - Dewitt equation
Dec
17
answered Physics Paradox about Newtons Second Law $F=ma$
Dec
17
awarded  Teacher
Dec
17
answered Does a car use friction to move?