You have that slide rule in the back of the closet. Maybe it was from your college days. Maybe it was your Dad’s. Honestly. Do you know how to use it? Really? All the scales? That’s what we thought.

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 ...

Learning something on YouTube seems kind of modern. But if you are watching a 1957 instructional film about slide rules, it also seems old-fashioned. But Encyclopædia Britannica has a complete ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This 10-inch duplex slide rule is ...