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Terry Bollinger earned this badge 8 times |
may 5 at 21:49
If photon energies are continuous and atomic energy levels are discrete, how can atoms absorb photons?
apr 27 at 19:05
A fly in an accelerating car
feb 23 at 12:34
Are there still 'everyday' phenomena unexplained by Physics?
may 12 '12 at 16:32
Human perception of distance
apr 24 '12 at 6:06
Why are electrons and quarks 0-dimensional?
apr 16 '12 at 16:12
What does it mean for two objects to “touch”?
apr 13 '12 at 15:33
Why are alpha particles made of 2 protons and neutrons?
apr 1 '12 at 17:32
What is anti-matter?
