Search results
A slide rule is a hand -operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry. It is one of the simplest analog computers. [1] [2]
Jun 7, 2023 · To use a slide rule to multiply 2 numbers together, move the decimal points for each number you are multiplying so they fall between the values of 1 and 10. Next, find the smaller number on the D scale and slide the C scale so the "1" on the far left lines up with the smaller number.
- 137.1K
Slide rule, a device consisting of graduated scales capable of relative movement, by means of which simple calculations may be carried out mechanically. Typical slide rules contain scales for multiplying, dividing, and extracting square roots, and some also contain scales for calculating.
- The Editors of Encyclopaedia Britannica
Apollo 11 - NASA's Lunar Lander space vehicle, with the crew Neil Armstrong, Buzz Aldrin and Michael Collins carried slide rules, for the first time in history, into space and onto the moon, July, 1969. The slide rule of choice was the aluminum pocket.
- 4MB
- 56
Learn about the history and diversity of slide rules, analog computing devices that were widely used until the 1970s. Explore over 200 slide rules from different countries, materials, shapes, and purposes in the Mathematics Collection.
The slide rule eased the addition of the two logarithmic displacements of the numbers, thus assisting with multiplication and division in calculations. More functionality was later added such as the ability to compute exponential and trigonometric functions.
Oct 22, 2014 · So, What Is A Slide Rule? Slide rules are typically rectangular and about the size of a ruler. They are divided into thirds, the top and bottom are fixed in place, but the middle...
