Math students at the University of Sheffield in the UK have created a formula for the perfectly decorated tree that determines exactly how many baubles there should be, how much tinsel is needed, the correct number of lights, and even the precise height of the ideal tree topper. Too bad this "Treegonometry" tool wasn't widely available by the time some of the more, erm, creative trees made their debut. Go ahead, try it. [University of Sheffield via Gizmodo]
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