Hydraulic oil ranks high among fluids with multi-function capability. True, for sheer utility, it can’t match olive oil, which through the centuries has been used as food, lubricant, fuel, medicine, ...

Modern vehicles rely on a host of fluids to send us down the road. Some, like engine oil and coolant, are well-known, while others, like differential fluid, are less-familiar to average motorists.

Field examples from the Western Desert of Egypt show the effectiveness of compressional-wave velocity (V p) and shear-wave velocity (V s) crossplots for identifying the type of fluid contained in a ...