Even so, these simple devices are both very versatile and can be extremely precise, as [Bob, the Science Guy] demonstrates in a recent video. Slide rules at their core are very simple: you got ...

Slide rules are a neat piece of math and history ... The question is: why would you want to? The answer is simple. Suppose you wanted to multiply two numbers. I’ll do 200 and 100 first, even ...

Before there were apps for tablets and smartphones, before mathematics education software was easily installed on personal computers, before electronic calculators entered professional practice and ...

With a little practice, it is surprisingly simple to use. Founded in 1956, Ollech & Wajs specialized in slide rule bezels during the 1960s and 1970s. It provided different logarithmic scales ...

Primarily for multiplication and division, the slide rule has two stationary sets and one sliding set of numbers in the center. To multiply, numbers are added; to divide, numbers are subtracted.