THE thermionic valve has long been recognized as a useful tool in many branches of science and engineering; but few, with the exception of experimenters, have realized that it can be usefully applied ...

Before selecting an engineered solution for any fluid control application, it is crucial to understand the unique application and overall value that each ball valve provides. Ball valves come in a ...

The question, “Presta or Schrader?”, may seem confusing when you’re new to cycling and head to a bike shop to buy a replacement inner tube. For the vast majority of bikes, there are two types of valve ...