I recently was reading about traditional inorganic analysis of an unknown alloy. From an idiot's POV, it's a series of precipitations, interleaved with centrifugation or filtration, followed by another precipitation, etc. Some color changes and lots of fussy details, like how to dry a...
I stumbled on a guy who uses a appliance type microwave oven to melt metal (link below). He makes a kaowool enclosure for home-made silicon-carbide crucibles. The kaowool absorbs little in the "microwave" bands and silicon carbide absorbs strongly...
I'm working on a design that has several joints that move very little and under fairly high load. At the moment it appears that a conical plain bearing is the best solution. To get NZ/P up to about 10, I'll need to use fairly viscous grease. CMD #3 was my first thought but there's no viscosity...
