mercury vapor
101Group 12 element — A group 12 element is one in the series of elements in group 12 (IUPAC style) in the periodic table, consisting of transition metals which are zinc (Zn), cadmium (Cd), mercury (Hg), and ununbium (Uub). When compared with other groups of… …
102Mad Hatter — The Hatter is a fictional character initially encountered at a tea party in Lewis Carroll s Alice s Adventures in Wonderland and later again as Hatta in the story s sequel, Through the Looking Glass . He is popularly referred to as the Mad Hatter …
103Hydrargyrum medium-arc iodide lamp — Hydrargyrum medium arc iodide, or HMI, is a mercury halide gas discharge medium arc length lamp with a multi line spectra emission. The name implies that hydrargyrum, an archaic term for Mercury (Hg), is held as a vapour mixed with other rare… …
104micromercurialism — n. [micro + mercurialism. Coined by the chemist A. Stock in 1926. See {mercurialism}.] (1926) A form of mercury poisoning resulting from long term exposure to low doses of mercury. The syndrome of micromercurialism involves complex symptoms of… …
105Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …
106Neodymium — praseodymium ← neodymium → promethium ↑ Nd ↓ U …
107Photoresist — A photoresist is a light sensitive material used in several industrial processes, such as photolithography and photoengraving to form a patterned coating on a surface. Contents 1 Photoresist categories 1.1 Tone 1.2 Developing light wavelength …
108Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare …
109Fluorescence spectroscopy — aka fluorometry or spectrofluorometry, is a type of electromagnetic spectroscopy which analyzes fluorescence from a sample. It involves using a beam of light, usually ultraviolet light, that excites the electrons in molecules of certain compounds …
110Geissler tube — The Geissler tube is a glass tube for demonstrating the principles of electrical glow discharge. The tube was invented by the German physicist and glassblower Heinrich Geissler in 1857. The Geissler tube was an evacuated glass cylinder with an… …
