3D printing is a powerful tool for creating all kinds of stuff, but it has its limits. Hobbyist-focused machines that dispense melted plastic through a nozzle can only make parts that are so strong.

Compressed air isn’t really a practical form of energy storage for headline uses like transport or heating, but it’s a fun thing to tinker with at the small scale. [Tom Stanton] is plenty experienced ...

Honda’s VTEC technology is well-known for putting a little pep in the step of its engines. These days, it’s a bit of a tuner meme, prompting one YouTuber to recreate the system on a smaller scale.

Aircraft parts generally have to meet very specific standards, because if certain parts fail, the aircraft falls out of the sky. This usually ends poorly, and is best avoided by using the proper ...