[Colin] and [Fergus] have been working with GPS for years now, and like most builders of really cool things, they’re often limited by the precision of off-the-shelf GPS units. While a GPS receiver is ...

Unground ball bearings may be wholly unground, ground in part, or wholly ground, but are characterized by precision levels less than ABEC 1. They are available in the traditional ball bearing forms to ...

Ultraviolet spectroscopy plays a critical role in the study of electronic transitions in atoms and rovibronic transitions in molecules. These studies are essential for tests of fundamental physics, ...