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Why don't people use slide rules anymore?
The use of slide rules declined quickly after the introduction of inexpensive calculators. By 1976, calculators could be purchased at prices competitive with slide rules, and since their use did not require special training, they were more accurate, and they had greater functionality, it made little sense for most people to get slide rules. There are still some slide rules being manufactured for special purposes, however. One such is a circular proportional scale used for determining the size to make a copy on a copy machine according to a different size of paper from the original.
What invention replaced the slide rule?
Slide rules were replaced by pocket calculators. This happened very suddenly as soon as the price of the calculator became comparable with the slide rule. The market for the slide rule dried up almost completely, in much of the world, in less than a year. Some specialty slide rules have survived, however.
What is the definition of slide rules?
A slide rule is a simple mechanical analog calculator consisting of logarithmically graduated scales, one of which can be moved across the other so as to provide a method of multiplication or division by combining lengths on the scales.
What did Apollo 13 crew use to do complicated math?
Pencil and paper, and a radio link back to NASA where they could talk to men with slide rules.
What are the contributions of William Oughtred in Mathematics?
William Oughtred was the inventor of the Slide Rule which allowed mathematical operations such as multiplication and division to be calculated by reading values from graduated scales. Slide rules were still commonly used in the 1970's and early 1980's but with the invention of modern electronic calculators, the use of the slide rule has declined.
