[Andy Pugh] found himself in need of a large linear slide, so he resorted to making his own with steel square tubing and a bit of PTFE (Teflon). The PTFE slider/spacers [Andy] needed a compact ...

Slide rules are analog computing devices marked with linear or logarithmic scales, some on a moving slide and some stationary on the base of the instrument, so that two numbers may be added or ...

This is a 3D slide deck that uses HTML5, CSS3, and a bit of SVG (video). The main idea behind this deck is to be able to 'zoom' into topics to as deep a level as necessary. Slides are nested, like an ...