Plasma-based nuclear fusion reactors have been around for a while, but they’ve long been unwieldy. PPPL’s reactor is a glass vacuum tube coated in a 3D-printed nylon shell. The hell holds in place ...
Accounting is more than just the act of keeping a list of debits and credits ... IBM's first large computer was based on the vacuum tube when it was first released in 1952. It was small enough to make ...