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Oct
9
awarded  Popular Question
Sep
24
awarded  Autobiographer
Jul
2
awarded  Popular Question
Jun
5
awarded  Notable Question
Nov
10
awarded  Popular Question
May
16
asked Is it possible to whirl a point mass (attacted to a string) around in a horizontal circular motion *above* my hand?
Jan
3
comment Why doesn't my pinhole camera work?
In the picture with the tree, we'd assume that the sunlight is shining on the tree from left hand side don't we? I think the position of the light to the apple should be right.
Jan
3
asked Why doesn't my pinhole camera work?
Sep
22
awarded  Student
Sep
22
asked Will two magnets lose magnetism if they stick to each other for infinitely long time?