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.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the 17th century, the British ...

Keuffel & Esser Company, which had its headquarters in New York City, was a leading American maufacturer of slide rules and drawing instruments. Between 1961 and 1971, the company gave the Smithsonian ...

SOME modern writers attribute the invention of the rectilinear slide rule to Edmund Gunter, others to William Oughtred, but most of them to Edmund Wingate. This disagreement is due mainly to lack of ...

New additions will normally be updated on a quarterly basis each January, April, July, and October and the next quarterly update will be in early April 2026. - If a sprinkler head is popped up, the ...

Slide Insurance Holdings, Inc. engages in underwriting single family and condominium policies in the property and casualty industry in the United States. It writes coastal specialty personal lines ...

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Doretha Clemons, Ph.D., MBA, PMP, has ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Vikki Velasquez is a researcher and writer ...