UV Index Resources. 1  Download the free UV Index smartphone app. 2  Stay up to date with our UV Index applications. 3  UV Alert map Exit- Areas in the U.S. where the UV Index is forecasted to be above normal. 4  Cities forecast bulletin Exit- A plain text listing of forecasted UV Index values for 58 U.S. cities.
High electrical conductivity refers to the ability of certain materials to conduct a large amount of electrical current. Electrical conductivity is abbreviated by the Greek letters sigma (Ï) or kappa (Îº). The SI unit of electrical conductivity is Siemens per meter (S/m).
Thermal conductivity 1. Thermal conductivity. In physics, thermal conductivity, is the , property of a material's ability to conduct heat. It appears primarily in. Fourier's Law for heat conduction. Thermal conductivity is measured in watts per kelvin-meter (WÂ·Kâ1Â·mâ1, i.e. W/(KÂ·m) or in IP units (BtuÂ·hrâ1Â·ftâ1Â·Fâ1, i.e. Btu/(hrÂ·ftâF).