There is something inside my brain that I seem unable to turn off. When I say I cannot do something or do not know how it is done, it won't leave me alone. Fortunately, in this information age, I can usually just use a search engine and find out. When I wrote last week's blog entry, I mentioned that making fluid flow upwards was beyond me. It was meant to be kind of amusing, not really a serious challenge. By the time I was finished, I realized my brain had been ...