PSI – Pounds per square inch The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch. In SI […]
Coandă effect The Coandă effect is the tendency of a fluid jet to stay attached to a convex surface. It is named after Romanian inventor Henri Coandă, who described it as “the tendency of a jet of fluid emerging from an orifice to follow an adjacent flat or curved surface and to entrain fluid from […]
How to make Cold Compressed Air Air is freely available everywhere, while compressed air isn’t. What is compressed air, and what happens to it when it’s compressed? All human beings need air, including oxygen, to survive. Engines and electronics also require air for their proper functioning and operation. Compressed air is a standard tool to […]
