• Four familiar and unmistakable scents

    Il y a 21 jours - Par Now Smell This

    Sharpee and her colleagues analyzed odor molecules found in four familiar and unmistakable scents: strawberries, tomatoes, blueberries and mouse urine. The researchers calculated how often and in what concentrations certain molecules turned up together in these scents. They then created a mathematical model in which molecules that occurred together frequently were represented as closer in space and molecules that rarely did so were farther apart. The result was a “saddle”-shaped surface-a hallmark of a field called hyperbolic geometry, which obeys different rules from the geometry most...
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