electric incandescent lamp
121History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …
122light bulb — noun electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity (Freq. 2) • Syn: ↑lightbulb, ↑bulb, ↑incandescent lamp, ↑electric light,… …
123electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… …
124Electrical ballast — Choke ballast (inductor) used in older lighting. This example is from a tanning bed. Requires a lamp starter (below) and capacitor …
125Christmas lights — This article is about the decoration. For the Coldplay song, see Christmas Lights (song). For the TV show, see Christmas Lights (television special). LED illumination in Viborg, Denmark Christmas lights are lights used for decoration around… …
126Energy Independence and Security Act of 2007 — Full title Energy Independence and Security Act of 2007 Enacted by the 110th United States Congress Citations Public Law …
127Vacuum 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… …
128List of inventors — This is a list of inventors. See also: List of scientists, Timeline of invention, List of inventions named after people, List of inventors killed by their own inventions, and . Alphabetical list compactTOC NOTOC A * Vitaly Mikhaylovich Abalakov,… …
