If you think of a metal detector, you’re probably thinking of a fairly simple device with a big coil and a piercing whine coming from a tinny speaker. [mircemk] has built a more modern adaptation.

Richmond County school leaders are taking more steps to improve school safety. They’ve already installed metal detectors at 4 high schools in the county, but now they want to bring those devices to ...

A traditional early project for someone discovering a love for electronics has been for many years a metal detector. This would mean a few transistors back in the day, but today it’s more likely to ...

If metal detectors are required at courthouses, isn’t it that much more important to have them at all schools? We owe our children a duty to protect them, even the demented ones before they inflict ...

The MNPS board approved a pilot program that will install weapon detection systems across all Nashville middle schools.

Entrants into Western High School are checked before the Wildcats’ game against Coconut Creek on Oct. 1. The use of metal detectors will likely be expanded to the school day. (TNS) — Broward schools ...

For more stubborn rust or scale, mechanical methods may be necessary. Brass wire brushes, scrapers, or even rotary tools with ...