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| Revival | Answered more than 30 days later as first answer scoring 2 or more. This badge can be awarded multiple times. |
Ben Crowell earned this badge 8 times |
jun 12 at 15:02
MRI's and Electromagnetic Radiation
jun 2 at 19:52
Why does light of high frequency appear violet?
may 16 at 13:37
Rough, easy DIY method of measuring magnetic field strength
may 3 at 2:27
The status / acceptance of block time?
aug 20 '11 at 0:08
existence of other forces obeying inv square law
jul 25 '11 at 23:13
electron orbits
jul 20 '11 at 9:53
The Pioneer anomaly finally explained?
