When it comes to pumps, many people confuse pressure with flow — but they’re not the same thing. This video breaks down how pumps actually move fluid by creating flow, while the system’s ...

A hedge fire, measuring longer than two tennis courts, was blazing in North Yorkshire today.

April 1915 - The first use of a gun synchronized to fire through the propeller...by Lieutenen Oswald Boelde in a Fokker E-L ...