There Has Been Snow, Apparently…

This picture was taken with NASA’s Terra satellite which has been monitoring weather on Earth since February 2000. It takes around 1½ hours to orbit the earth at a distance of about 420 miles (660 km – it’s orbit is elliptical so it is not always the same distance from earth). Each pixel of the photograph …
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Exponential Growth…

The below describes the effects of exponential growth and is entirely lifted from something I read on the Internet. You may have a copy of the same article in paper form but the links might add to your understanding. The principle is simple. You start with one. Double it and you have two. Double again and …
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