A Winter Wind. . .
Yesterday on Facebook I shared a comic that I though very funny. Here is a link to it: http://xkcd.com/1111/ There is an associated page or site to xkcd.com, called “What if: ANSWERING YOUR HYPOTHETICAL QUESTIONS WITH PHYSICS, EVERY TUESDAY.” One of the questions tackled is: What would the world be like if the land masses were spread out the same way as now - only rotated by an angle of 90 degrees? Within that page was a mention of the “Bodele Depression” in Chad feeding the Amazon rainforest a huge fraction of the mineral nutrients required for the plants in that fertile area to grow. I was intrigued. I had never heard of the Bodele Depression. . . isn’t the Internet wonderful. . . the information available at your fingertips. I began to research. The Bodele Depression is the now exposed bottom of a prehistoric lake, about the size of the present Lake Erie in the United States, which largely disappeared several thousand years ago. The present l...