I needed a temperature controller module recently, so off I went to Banggood to order one. As one does I found myself browsing, one thing led to another, and I bought a micrometer screw gauge. While ...

A new device and technique have been developed by National Institute of Standards and Technology researchers for measuring "breakdown" voltage -- the voltage required to produce electrical arcs when ...

The capability of a vernier or digital caliper depends on the accuracy of the scale. A caliper's design, rigidity of the beam, squareness and parallelism of the jaws to the scale, and general ...

Face it, high-performance cars are extremely precise machines with very tight tolerances. In order to build a high-performance engine, you must be able to measure those clearances. Cars are not like ...

Hackaday editors Mike Szczys and Elliot Williams fan through a fantastic week of hacking. Most laser cutters try to go bigger, but there’s a minuscule one that shows off a raft of exotic components ...