(piezoelectricity)
71Electret — (formed of elektr from electricity and et from magnet ) is a dielectric material that has a quasi permanent electric charge or dipole polarisation. An electret generates internal and external electric fields, and is the electrostatic equivalent… …
72Duality (electricity and magnetism) — For other meanings of the word not related to electricity and magnetism, see Duality (disambiguation). In physics, the electromagnetic dual concept is based on the idea that, in the static case, electromagnetism has two separate facets: electric… …
73Touchscreen — A boy is solving a computerized puzzle using a touchscreen. A touchscreen is an electronic visual display that can detect the presence and location of a touch within the display area. The term generally refers to touching the display of the… …
74Antoine César Becquerel — (March 7, 1788 ndash; January 18, 1878) was a French scientist and a pioneer in the study of electric and luminescent phenomena.He was born at Chatillon sur LoCrea( today Châtillon Coligny). After passing through the École polytechnique he became …
75Piezo — derived from the Greek piezein , which means to squeeze or press, is a prefix used in: * Piezoelectricity * Piezoresistive * Piezometer * Piezo ignition * Piezoelectric sensor * Piezoelectric loudspeakers …
76Air freshener — A basic gel fragrance air freshener. Air fresheners are consumer products used in homes or commercial products used in restrooms that typically emit fragrance. There are two broad air freshener categories: continuous action and instant action.… …
77Quartz crystal microbalance — A quartz crystal microbalance (QCM) measures a mass per unit area by measuring the change in frequency of a quartz crystal resonator. The resonance is disturbed by the addition or removal of a small mass due to oxide growth/decay or film… …
78Integrated circuit piezoelectric sensor — An Integrated circuit piezoelectric or ICP sensor is used to measure piezoelectricity in circuitry.ICP is an acronym for integrated circuit piezoelectric , and is a registered trademark of PCB Group, Inc.(1,603,466), parent company of PCB… …
79Energy harvesting — (also known as Power harvesting or energy scavenging ) is the process by which energy is captured and stored. Frequently this term is applied when speaking about small autonomous devices, like those used in sensor networks. A variety of different …
80Making fire — A flint, metal implement to strike with it, charred cloth and piece of mushroom Fire was an essential tool in early human cultural development and still important today. Many different techniques for making fire (also called firemaking,… …
