If generations of Hollywood heist films have taught us anything, it’s that knocking off a bank vault is pretty easy. It usually starts with a guy and a stethoscope, but that never works, so the bad ...

Broken, rusty parts are common fare for classic trucks. Rust penetrates the pores of older metal, and even with glass-beading and acid dips, rust remains chemically embedded in badly oxidized metal.

AUTOGENOUS welding consists in uniting metals by fusion without the intervention of solder. Ordinary welds may be effected by heating in a forge, but the local application of heat by an electric ...