from superconducting magnets cooled by liquid helium to linear motors that replace traditional wheels. With a 10 cm hover gap and zero contact with the rails, these trains promise smooth ...

An adjustable retaining roller made from the most adorable linear bearing we’ve ever seen ensures that only one card at a time is pulled from the hopper onto an imaging platen. An adjustable ...

Starting with a disk caddy on linear rails, [Smith] has a track for the floppy to follow. First it goes through a set of pads with cleaning solution on them, and is then dried off with heating ...