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.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Maurice Hartung of the University of ...

THE author makes his title, “Quick and Easy Methods of Calculating”—at least, that is all that is in large print on the title-page; but the binder calls it, on the outside of the book, “The Slide-Rule ...

WEST LAFAYETTE, Ind. – Astronauts Neil Armstrong and Jerry Ross, along with about 200 other Purdue University alumni, have added their slide rules to a new exhibit at their alma mater that testifies ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Pickett, Inc., was a slide rule ...

When is a line not a line? When it’s a series of tiny dots, of course! The line is actually tiny, laser-etched craters, 0.25 mm center-to-center. That’s the technique [Ed Nisley] used to create a ...

An early computing device invented by Reverend William Oughtred in London in the 17th century. Primarily for multiplication and division, the slide rule has two stationary sets and one sliding set of ...