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.

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 cylindrical calculating rule was ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

While the three-way battle for Formula 1's Drivers' Championship inevitably takes centre stage at the Qatar Grand Prix, the season's penultimate event also features a specific tyre rule in place for ...

The 2025 Winter Meetings in Orlando unofficially wrapped up Wednesday afternoon with the annual Rule 5 Draft. The Rule 5 Draft gives minor leaguers who are not top prospects a big-league opportunity ...

This video tells the story of how American artillery held Elsenborn Ridge during the Battle of the Bulge. It follows Abbott Harrington Burns, Major George Kaiser, and Brigadier General John H. Hines ...

In January 2026, the new Roth catch-up rules take effect. The mandate prevents workers over 50 who earned more than $150,000 the prior year from making pre-tax catch-up contributions to their 401(k).

Knowing these rules can help you avoid big penalties or unnecessary withdrawals. Unfortunately, the government won't let you keep growing your savings tax-free forever. Eventually, it imposes required ...

The 2025 season has ended and McLaren have won both the constructors' and drivers' championships - but now things are about to change in Formula 1. Next year, the sport will enter a new dawn of ...

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Vikki Velasquez is a researcher and ...