It’s not like etching with hydrochloric acid and peroxide is anything new, really; it was just something new to him. But is it even possible these days to post something and not find out just ...

For a lot of reasons, home etching of PCBs is somewhat of a dying art. The main reason is the rise of quick-turn PCB fabrication services, of course; when you can send your Gerbers off and receive ...

etching on folded wove paper from The Gentleman's Magazine for October, 1768 (Volume 38, Issue 10), depicting barges (boats) transporting the Danish king, Christian VII, from Whitehall (a prominent ...