energy insensitive
41Phase transition — This diagram shows the nomenclature for the different phase transitions. A phase transition is the transformation of a thermodynamic system from one phase or state of matter to another. A phase of a thermodynamic system and the states of matter… …
42Noether's theorem — This article discusses Emmy Noether s first theorem, which derives conserved quantities from symmetries. For her related theorem on infinite dimensional Lie algebras and differential equations, see Noether s second theorem. For her unrelated… …
43Non-standard cosmology — Physical cosmology Universe · Big Bang …
441968 Thule Air Base B-52 crash — A B 52G, similar to the one that crashed at Thule Air Base Accident summary Date …
45Pain — This article is about physical pain. For pain in the broader sense, see Suffering. For other uses, see Pain (disambiguation). Pain A sports player in pain. ICD 10 R52 …
46Weighting filter — A weighting filter is used to emphasise or suppress some aspects of a phenomenon compared to others, for measurement or other purposes. Contents 1 Audio application …
47Optical amplifier — An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from… …
48W. H. R. Rivers — Photograph of Rivers taken by Henry Maull Born 12 March 1864(1864 03 12) …
49Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… …
50Aeroponics — is the process of growing plants in an air or mist environment without the use of soil or an aggregate medium. Aeroponic culture differs from both hydroponics and in vitro (Plant tissue culture) growing. Unlike hydroponics, which uses water as a… …
