Click to view We’ll admit it: we’ll lack the ambition to perform most of the hacks you read about on Giz. But taping a calculator to an AM radio to make a metal detector? That’s right up our alley.

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

I selected the best metal detectors after trying a handful of options that came recommended to me by Jeff Lubbert, an expert detectorist who has been tracking down treasures and finding lost rings ...