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De - Pt| Proverbs, aphorisms, quotations (English) | by Linux fortune |
| To those accustomed to the precise, structured methods of conventional system development, exploratory development techniques may seem messy, inelegant, and unsatisfying. But it's a question of congruence: precision and flexibility may be just as disfunctional in novel, uncertain situations as sloppiness and vacillation are in familiar, well-defined ones. Those who admire the massive, rigid bone structures of dinosaurs should remember that jellyfish still enjoy their very secure ecological niche. -- Beau Sheil, "Power Tools for Programmers" | |
| Ginsburg's Law: At the precise moment you take off your shoe in a shoe store, your big toe will pop out of your sock to see what's going on. | |
| It is a profoundly erroneous truism, repeated by all copy-books and by eminent people when they are making speeches, that we should cultivate the habit of thinking about what we are doing. The precise opposite is the case. Civilization advances by extending the numbers of important operations which we can perform without thinking about them. Operations of thought are like cavalry charges in battle -- they are strictly limited in number, they require fresh horses, and must only be made at decisive moments. -- Alfred North Whitehead | |
| After this was written there appeared a remarkable posthumous memoir that throws some doubt on Millikan's leading role in these experiments. Harvey Fletcher (1884-1981), who was a graduate student at the University of Chicago, at Millikan's suggestion worked on the measurement of electronic charge for his doctoral thesis, and co-authored some of the early papers on this subject with Millikan. Fletcher left a manuscript with a friend with instructions that it be published after his death; the manuscript was published in Physics Today, June 1982, page 43. In it, Fletcher claims that he was the first to do the experiment with oil drops, was the first to measure charges on single droplets, and may have been the first to suggest the use of oil. According to Fletcher, he had expected to be co-authored with Millikan on the crucial first article announcing the measurement of the electronic charge, but was talked out of this by Millikan. -- Steven Weinberg, "The Discovery of Subatomic Particles" Robert Millikan is generally credited with making the first really precise measurement of the charge on an electron and was awarded the Nobel Prize in 1923. | |
| The rate at which a disease spreads through a corn field is a precise measurement of the speed of blight. | |
| There's no sense in being precise when you don't even know what you're talking about. -- John von Neumann | |
