One of my favorite ways to think of engineering is that a glass is not half empty or half full, only twice as large as it needs to be. As useful as that idea is, it also means that I rarely put any… ...

In this video I share 2 simple ways how to metal etch using electricity. I use these same techniques on every metal restoration / modification project. This is so easily done and can substitute ...

Over the last few months, [Chris] has been machining a timepiece out of brass and documenting the entire process on his YouTube channel. This week, he completed the clock face. The clock he’s… ...

As a side benefit, the etching process makes metal surfaces water-repellant. Additionally, the treatment can be used to remove less chemically-stable particles from metal surfaces.

MILFORD — Their products adorn Christmas trees, help power heart pacemakers and protect the microcircuits guiding Stinger missiles. Now, the advent of "green" technology is opening up new vistas ...