Forget apps and smart displays. The most elegant kitchen calculator is a mechanical device from the 1600s. Entropic Thoughts ...

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 ...

The game of football is constantly evolving as it gets more aggressive as players get faster and stronger. But, the core issue of player safety, especially for the league's most valuable assets, ...

It is no secret that we like slide rules around the Hackaday bunker, and among our favorites are the cylindrical slide rules. [Chris Staecker] likes them, too, and recently even 3D printed a version.

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WILLIAMSTOWN — They weren’t exactly a “fad” (you couldn’t wear one, a barber or hairdresser couldn’t shave or sculpt one), but slide rules nevertheless became what might be called academically ...

For about 350 years, humanity’s most innovative handheld computer was something called a slide rule. As typewriters once symbolized the writer, slide rules symbolized the engineer. These analog ...

If the Otis King slide rule in [Chris Staecker’s] latest video looks a bit familiar, you might be getting up there in age, or you might remember seeing us talk about one in our collection. Actually, ...

My thoughts go back 50 years to junior high geometry. We were required to buy a slide rule and instructed in its use. Later, my parents bought me one of the first handheld calculators as a high school ...