Industrial and chemical processes ranging from brewing to polymerization depend on delivery of accurate quantities of gases or liquids. It is possible to measure rates of delivery in terms of either ...

A flow meter works by measuring the amount of a liquid, gas, or steam flowing through or around the flow meter sensors. Flow meter sensors work in different ways, but with the same end goal: Provide ...

For seven weeks, BP has insisted that measuring exactly how much oil is gushing into the Gulf of Mexico is a daunting -- perhaps impossible -- task. The depth of the well, and the volume of natural ...