Test Tube Aliens — are a series of toys that were invented by JKID Ltd and released by 4Kidz, Inc., a toy and juvenile products company based in Stamford, Connecticut. Story There are 10 aliens available five good, five bad. The five good aliens have escaped their… … Wikipedia
Conductivity (electrolytic) — The conductivity (or specific conductance) of an electrolyte solution is a measure of its ability to conduct electricity. The SI unit of conductivity is siemens per meter (S/m). Conductivity measurements are used routinely in many industrial and… … Wikipedia
Thermal conductivity — In physics, thermal conductivity, k, is the property of a material that indicates its ability to conduct heat. It appears primarily in Fourier s Law for heat conduction.First, we define heat conduction by the formula::: H=frac{Delta Q}{Delta t}=k … Wikipedia
Hydraulic conductivity — Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soil or rock, that describes the ease with which water can move through pore spaces or fractures. It depends on the intrinsic permeability of the material… … Wikipedia
Molar conductivity — is defined as the conductivity of an electrolyte solution divided by the molar concentration of the electrolyte, and so measures the efficiency with which a given electrolyte conducts electricity in solution. Its units are siemens per meter per… … Wikipedia
Cone penetration test — A CPT truck operated by the USGS. The cone penetration test (CPT) is an in situ testing method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the… … Wikipedia
Electrical conductivity meter — An electrical conductivity meter. An electrical conductivity meter (EC meter) measures the electrical conductivity in a solution. Commonly used in hydroponics, aquaculture and freshwater systems to monitor the amount of nutrients, salts or… … Wikipedia
Negative differential conductivity — (NDC) is a nonlinear electrical phenomenon. If J is not a monotonic function of E at some values of E, the conductivity will be negative: and negative differential conductivity is experienced; that is, in some electric field, as the current… … Wikipedia
Aquifer test — An aquifer test (or a pumping test) is conducted to evaluate an aquifer by stimulating the aquifer through constant pumping, and observing the aquifer s response (drawdown) in observation wells. Aquifer testing is a common tool that… … Wikipedia
Soil test — In agriculture, a soil test is the analysis of a soil sample to determine nutrient content, composition and other characteristics, including contaminants. Tests are usually performed to measure fertility and indicate deficiencies that need to be… … Wikipedia
Lie detector test (disambiguation) — Lie detector test may refer to: *Polygraph, a device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity in an attempt to detect stress. * Lie Detector Test, a song by… … Wikipedia