If there’s one thing that woodworkers have always been good at, it’s coming up with clever jigs and work-holding solutions. Most jigs, however, are considerably simpler and more static than this ...

Many of us have heard the name Archimedes’ screw — but not everyone knows the term screw conveyor. These folks (sadly, the videographer at [Breeze Media] doesn’t tell us their names, or the company ...

The efficiency is determined by pumping losses. The closer the outer surface of the inner scroll comes to the inside surface of the outer scroll, the less leakage there will be. This phenomenon is ...