It's been so long since there's been constant bright sunlight in Chicago that I am startled every time this week that I walk indoors and see that the phosphorescent hands and numbers on my watch face are glowing. Of course, this is the time of year
We're used to thinking of the movement of an object as homogeneous and instantaneous. In other words, for example, when I give a push to the fat end of my pool cue, the felted end moves at the same time to strike the cue ball. But I have
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