Copper units of pressure or CUP, and the related lead units of pressure or LUP, are terms applied to pressure measurements used in the field of internal ballistics for the estimation of chamber ...

Standard altitude-pressure tables allow mountaineers and aviators ... As air becomes less dense, it contains less gases per unit of volume, and therefore less oxygen. Physiologists use this ...

Historically, the changes in the height of the mercury were measured with a ruler, so barometric pressure used "inches of mercury" as a unit. Today, the metric units of the bar and the millibar are ...

Bring new life to your driveway, siding and more with a pressure washer. Our CNET expert tested and ranked the top electric and gas-powered models. A pressure washer can help clear the accumulated ...