Rust is the bane of any metal collector, whether they have a bounty of old coins or just an extensive wall of nuts and bolts for future projects. Once something rusts or corrodes, it loses its value ...

If you’re reading Hackaday, there’s a good chance you had a rock tumbler in your younger days. Hell, we’d put odds on a few of you having one rumbling away in the background as you read this. They’re ...

In order to turn a rough semiprecious stone into a beautiful piece of art, there are generally two options. You could wait a few hundred or even thousands of years for water and sand to polish the ...