[Nick Poole] does a lot of custom work with vacuum tubes — so much so that he builds his own vacuum tubes of various shapes, sizes, and functions right on his own workbench. While the theory of ...

The term “vacuum” means many different things depending whether you are working on space equipment, scientific instruments, or even internal combustion engines. In our sphere it is so often ...

Bothell, Wash.-based Portal Space Systems shows off the lab where its solar thermal propulsion system will be developed.

Vacuum sealers are a kitchen must-have for food that lasts, but they're often pricey investments. These vacuum sealer deals ...