Emit+vapor
41an(ǝ)-3 (*ḫenaḫ-) — an(ǝ) 3 (*ḫenaḫ ) English meaning: “to breathe” Note: Root an(ǝ) 3 : “to breathe” derived from a reduction of Root anĝhen : ‘smell, odour; person” as in Arm. anjn (for older *anj), gen. anjin “ soul, being, person “: O.N. angi m. “… …
42Fluorescent lamp — A fluorescent lamp or fluorescent tube is a gas discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light.Unlike… …
43Greenhouse gas — Simple diagram of greenhouse effect. A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.[1] …
44Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
45Atmosphere of Earth — Air redirects here. For other uses, see Air (disambiguation). Qualities of air redirects here. It is not to be confused with Air quality …
46Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
47History of street lighting in the United States — The use of street lighting was first recorded in the Arab Empire from the 9th 10th centuries, [Fielding H. Garrison, History of Medicine :quote| The Saracens themselves were the originators not only of algebra, chemistry, and geology, but of many …
48LED lamp — An LED lamp (LED light bulb) is a solid state lamp that uses light emitting diodes (LEDs) as the source of light. The LEDs involved may be conventional semiconductor light emitting diodes, organic LEDs (OLED), or polymer light emitting diodes… …
49Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …
50Mercury poisoning — Classification and external resources Elemental mercury ICD 10 T …
