Why Does Earth Have Deserts?
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Look at the earth - isn't it beautiful? Blue oceans, white polar ice-caps, and verdantgreen land. Some brown as well, where there aren't as many plants. But why are those partsof our earth barren, and others green? I mean, deserts cover much of Africa and Australia,but not Europe!Europeans, it turns out, discovered the answer, but in the most unlikely of places - the oceans!When sailing from Europe, trade winds pushed ships enthusiastically southwest to the equator,where suddenly, the winds would die. These were the doldrums. And for sailors, they werea pain.They were also annoying to scientists like Galileo, Kepler, and Halley, who all had theoriesabout why the wind blew to the southwest: Did the wind somehow follow the sun from morningtil night? Or maybe it had...
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Look at the earth - isn't it beautiful? Blue oceans, white polar ice-caps, and verdantgreen land. Some brown as well, where there aren't as many plants. But why are those partsof our earth barren, and others green? I mean, deserts cover much of Africa and Australia,but not Europe!Europeans, it turns out, discovered the answer, but in the most unlikely of places - the oceans!When sailing from Europe, trade winds pushed ships enthusiastically southwest to the equator,where suddenly, the winds would die. These were the doldrums. And for sailors, they werea pain.They were also annoying to scientists like Galileo, Kepler, and Halley, who all had theoriesabout why the wind blew to the southwest: Did the wind somehow follow the sun from morningtil night? Or maybe it had...
