Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Contact_electrification> ?p ?o. }
Showing items 1 to 29 of
29
with 100 items per page.
- Contact_electrification abstract "Contact electrification is a scientific theory from the Enlightenment that attempted to account for all the sources of electric charge known at the time. It has been superseded by more modern notions. In the late 18th century, scientists developed sensitive instruments for detecting 'electrification', otherwise known as electrostatic charge imbalance. The phenomenon of electrification by contact, or contact tension, was quickly discovered. When two objects were touched together, sometimes the objects became spontaneously charged. One object developed a net negative charge, while the other developed an equal and opposite positive charge. Then it was discovered that 'piles' of dissimilar metal disks separated by acid-soaked cloth, Voltaic piles, could also produce charge differences. Although it was later found that these effects were caused by different physical processes - triboelectricity, the Volta effect, differing work functions of metals, and others - at the time they were all thought to be caused by a common 'contact electrification' process.[citation needed]The contact electrification phenomenon allowed the construction of so-called 'frictional' electrostatic generators such as Ramsden's or Winter's machines, but it also led directly[citation needed] to the development of useful devices such as batteries, fuel cells, electroplating, thermocouples. Contact between materials is responsible for such modern electrical technology as semiconductor junction devices including radio detector diodes, photocells, LEDs, and thermoelectric cells.[citation needed]".
- Contact_electrification wikiPageID "857973".
- Contact_electrification wikiPageRevisionID "603886456".
- Contact_electrification hasPhotoCollection Contact_electrification.
- Contact_electrification subject Category:Electrical_phenomena.
- Contact_electrification subject Category:History_of_physics.
- Contact_electrification subject Category:Obsolete_scientific_theories.
- Contact_electrification type Abstraction100002137.
- Contact_electrification type Cognition100023271.
- Contact_electrification type Explanation105793000.
- Contact_electrification type HigherCognitiveProcess105770664.
- Contact_electrification type ObsoleteScientificTheories.
- Contact_electrification type Process105701363.
- Contact_electrification type PsychologicalFeature100023100.
- Contact_electrification type ScientificTheory105993844.
- Contact_electrification type Theory105989479.
- Contact_electrification type Thinking105770926.
- Contact_electrification comment "Contact electrification is a scientific theory from the Enlightenment that attempted to account for all the sources of electric charge known at the time. It has been superseded by more modern notions. In the late 18th century, scientists developed sensitive instruments for detecting 'electrification', otherwise known as electrostatic charge imbalance. The phenomenon of electrification by contact, or contact tension, was quickly discovered.".
- Contact_electrification label "Contact electrification".
- Contact_electrification label "Effetto Volta".
- Contact_electrification label "Kontaktelektrizität".
- Contact_electrification sameAs Kontaktelektrizität.
- Contact_electrification sameAs Effetto_Volta.
- Contact_electrification sameAs m.03hv8n.
- Contact_electrification sameAs Q1364712.
- Contact_electrification sameAs Q1364712.
- Contact_electrification sameAs Contact_electrification.
- Contact_electrification wasDerivedFrom Contact_electrification?oldid=603886456.
- Contact_electrification isPrimaryTopicOf Contact_electrification.