He quickly had his fill of the manual fretsaw work, though, and whipped up a simple scroll saw powered ... from the contrasting brass and steel parts to the choice of complex Arabic script for ...

With the experience gained from building that electrically simple brass frame, [Emily] then stepped up the difficulty for her follow-up project. It started with a sound synthesizer circuit built ...

So how do you clean brass? There are a few ways to go about it, and most of them are easy to do at home. On Feb. 4, the BBC posted an easy hack for brass that requires items you already have at home.