In the early days of motoring, there was no nationwide speed limit. This meant that drivers could theoretically reach very high speeds on certain public roads without worrying about tickets. However, ...

A command line tool to calculate a gearing range for a bicycle, based on inputs such as chainring and cassette size, or cassette range. Also accepts wheel and tire sizes, and can calculate ...

Last year, when Apple released iOS 18, it introduced several significant changes to the iPhone’s Calculator app. Basically, it gave it a bunch of new abilities. The headline new feature was Math Notes ...

These fancy graphing calculators are only going to get more expensive as back-to-school shopping goes into full swing. By Stan Horaczek Published Jul 29, 2025 2:58 PM EDT We may earn revenue from the ...

Solid goggles that feel like they’ll last, but for our money, we would like a bit more for race day. Score: 78% Over the years the Speedo Biofuse range have made a few appearances in 220. Here, I’ve ...

Colors group similar values. 80+ is green, 50ish-80, blue, and below 50, red. Cycling enthusiasts, whether they’re seasoned pros or just starting out, often find themselves pondering the complexities ...

Some of pro cycling's most renowned equipment specialists have independently shunned the idea that restricting gears will improve rider safety in the pro peloton. Dan Bigham, formerly Performance ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

iOS 18 dropped earlier this week and delivered a variety of “headline” new features to your current iPhone — no need to upgrade to an iPhone 16 just yet. Thanks to the new software, you can now fully ...

In a modern car, your speedometer might look analog, but it is almost certainly digital and driven by the computer that has to monitor all sorts of things anyway. But how did they work before your car ...