mercury vapor lamp
101ultraviolet source — noun any source of illumination that emits ultraviolet radiation • Syn: ↑ultraviolet lamp • Hypernyms: ↑source of illumination • Hyponyms: ↑mercury vapor lamp …
102Scandium — (pronEng|ˈskændiəm) is a chemical element that has the symbol Sc and atomic number 21. A silvery white metal that is always present as compounds, scandium ores occur as rare minerals from Scandinavia and elsewhere, and it is sometimes considered… …
103Coherence (physics) — In physics, coherence is a property of waves that enables stationary (i.e. temporally and spatially constant) interference. More generally, coherence describes all properties of the correlation between physical quantities of a wave. When… …
104HBO (disambiguation) — HBO may refer to:*Home Box Office ( aka HBO ), a U.S. premium television network. *Hyperbaric oxygen therapy, the medical use of oxygen at higher than atmospheric pressures. *The code for Humboldt Municipal Airport in Humboldt, Nebraska. * Hoger… …
105Energy Policy Act of 2005 — Enacted by the 109th United States Congress Citations Public Law …
106Gum bichromate — is a 19th century photographic printing process based on the light sensitivity of dichromates. It is capable of rendering painterly images from photographic negatives. Gum printing is traditionally a multi layered printing process, but… …
107Titan beetle — Taxobox name = Titanus giganteus image width = 250px regnum = Animalia phylum = Arthropoda classis = Insecta ordo = Coleoptera subordo = Polyphaga familia = Cerambycidae subfamilia = Prioninae genus = Titanus species = T. giganteus binomial =… …
108Otto Lummer — Otto Richard Lummer (1860 1925) was a German physicist and researcher.[1] He was born in the city of Gera, Germany. With Leon Arons, Lummer helped to design and build the Arons Lummer mercury vapor lamp.[2] Lummer primarily worked in the field of …
109Lummer , Otto — (1860–1925) German physicist Born at Jena, in Germany, Lummer became professor at the University of Breslau in 1905. In 1889 he designed, wth Eugen Brodhum, a photometer with an arrangement of prisms, which was an improved version of the grease… …
110ultraviolet — or UV The light whose wavelength (about 380 nanometers) is just long enough not to be x rays, but just enough shorter than violet light so that it is not visible to the human eye. Ultraviolet is also known by the short form of UV. It is… …
