Firms in the United States, Europe, and Japan made millions of the objects, and slide rule cases that attached to a belt loop were as common a sight on the hips of technical students in the 1950s and ...

This merger added a range of PIC slide rules to their range. the plastic slide rules where introduced in the 1960s and in 1967 the company became British Thornton. The slide rule was the evelution ...

In this follow-up Reddit post he discusses the fabrication techniques used for the acrylic circular slide rule shown in the lead photo. It’s always been possible to make your own slide rules ...

But [Mathologer] discusses a recent Reddit post that explains a circular slide rule-like device using a wheel and a stretchable rubber band. While it probably would be difficult to build the ...