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BlueRaja - Danny Pflughoeft
2,61222 gold badges2525 silver badges2929 bronze badges

earned this badge 5 times.
If different light frequencies travel at different speeds in air, why doesn't the sun have a rainbow halo?
Awarded Jun 17, 2021 at 8:01
Can an object accelerate to infinite speed in a finite time-interval in non-relativistic Newtonian mechanics?
Awarded Jan 19, 2017 at 4:13
Why is gravitational potential energy negative, and what does that mean?
Awarded Sep 7, 2016 at 11:17
Does alternating current (AC) require a complete circuit?
Awarded Aug 23, 2013 at 15:35
Have we figured out how to analyze turbulent fluids?
Awarded Oct 23, 2012 at 18:12

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