/u/trampabroad's posts in /r/askscience
I have just rubbed a million kittens on the moon, giving it a strong electric charge. Do the moon's rotations produce EM waves?
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I throw a ball at fifty percent the speed of light to my right, and another ball at 0.5 c to my left. According to relativity, how come the balls aren't travellinng at the speed of light relative to one another?
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