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Who Designed the Weather Icons?

To modern eyes, they're as intuitive as the alphabet: the bubbly cloud, the circle and its simplistic rays of sunshine. But our weather icons are actually pretty new inventions. Up until the 1970s, meteorologists used an enigmatic system of symbols to forecast the weather—until a design student came along and changed everything.

What Causes the Smell After it Rains?

There are three primary sources of smells that commonly occur after rain. The first, the "clean" smell, in particular after a heavy thunderstorm, is caused by ozone. Ozone (scientifically known as trioxygen due to the fact that it is comprised of three oxygen atoms) is notably pungent and has a very sharp smell that is often described as similar to that of chlorine.