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Physics
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SMUsamaShah
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182
Why does holding something up cost energy while no work is being done?
Dec 16, 2010
116
Why is glass transparent?
Mar 23, 2011
59
Why and how is the speed of light in vacuum constant, i.e., independent of reference frame?
Dec 24, 2010
51
What is the difference between a white object and a mirror?
Dec 15, 2010
32
Is time travel possible? Is it possible to go back in time?
Dec 22, 2010
19
Can magnets rotate infinitely?
Dec 22, 2010
19
Why two objects get charged by rubbing?
Feb 5, 2011
8
Are dangerous rays emitted during Solar Eclipse?
Jun 14, 2011
7
Simple explanation of quantum mechanics [closed]
Mar 12, 2011
5
How do GPS devices work?
Aug 1, 2011
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135
What is the difference between "till" and "until"?
76
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo
58
DataGridView - Focus a specific cell
44
Multiple simultaneous downloads using Wget?
41
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