Tuesday, March 17, 2020
Defining the Meissner Effect in Quantum Physics
Defining the Meissner Effect in Quantum Physics The Meissner effect is a phenomenon in quantum physics in which a superconductor negates all magnetic fields inside of the superconducting material. It does this by creating small currents along the surface of the superconductor, which has the effect of canceling out all magnetic fields that would come in contact with the material. One of the most intriguing aspects of the Meissner effect is that it allows for a process that has come to be called quantum levitation. Origin The Meissner effect was discovered in 1933 by German physicists Walther Meissner and Robert Ochsenfeld. They were measuring the magnetic field intensity surrounding certain materials and found that, when the materials were cooled to the point that they became superconducting, the magnetic field intensity dropped to nearly zero. The reason for this is that in a superconductor, electrons are able to flow with virtually no resistance. This makes it very easy for small currents to form on the surface of the material. When the magnetic field comes near to the surface, it causes the electrons to begin flowing. Small currents are then created on the surface of the material, and these currents have the effect of canceling out the magnetic field.
Sunday, March 1, 2020
Chemistry Abbreviations Starting with W, X, Y, Z
Chemistry Abbreviations Starting with W, X, Y, Z Chemistry abbreviations and acronyms are common in all fields of science. This collection offers common abbreviations and acronyms beginning with the letter W, X, Y, or Z used in chemistry and chemical engineering. Chemistry Abbreviations Starting with the Letter W W - TungstenW - WattW5 - Which Was What We WantedWA - Weak AcidWAC - Weak Acid CationWB - Water BasedWB - Weak BaseWB - Weak BondWBA - Weak Base AnionWC - Water CosolventWCS - Worst Case ScenarioWD - Water DispersantWD - Water DisplacementWD - Wet/DryWIAP - Water In All PhasesWIN - Water Insoluble NitrogenWNA - World Nuclear AssociationWO - Weak OxidizerWP - White PhosphorusWPS - Water Phase SaltWR - Water RepellentWS - Wash SolutionWS - Water SolubleWSPI - Water-Soluble Phosphorous, InorganicWSPO - Water-Soluble Phosphorous, OrganicWSS - Water Soluble StabilizerWST - Weighted Settling TimeWSNZ - Water Soluble ZincWV - Water VaporWVDA - Water Vapor Diffusion AnalysisWVM - Water Vapor MonitorWVN - Water Vapor NitrogenWVP - Water Vapor PermeabilityWVT - Water Vapor TransportWW - Waste WaterWWIX - Waste Water Ion eXchangeWYOL - Write Your Own LabWYOLA - Write Your Own Lab AssignmentWYU - What You Use Chemistry Abbreviations Starting with the Letter X XAG - Silver Troy OunceXAU - Gold Troy OunceXAN - XANthineXDB - eXtra Dense BondingXe - XenonXLS - Xenon Light SourceXOD - Xanthine OxidaseXPD - Palladium Troy OunceXPT - Platinum Troy OunceXUM - X-ray Ultra-MicroscopeXYD - XYliDine Chemistry Abbreviations Starting with the Letter Y y - yoctoY - YottaY - YttriumYb - YtterbiumYBCO - Yttrium Barium Copper OxideYAG - Yttrium Aluminum GarnetYAP - Yield Analysis PatternYBG - Your Best GuessYCC - American Chemical Society Younger Chemists CommitteeYd - YardYIC - Yttrium Lithium FluorideYZN - Yellow ZiNc dichromate Chemistry Abbreviations Starting with the Letter Z z - zeptoZ - ZettaZn - ZincZB - Zinc BlendeZC - Zinc CompositeZCG - Zeolite Crystal GrowthZCR - Zinc ChromiumZCS - Zinc Coated SteelZDC - Zero Degrees KelvinZEKE - Zero Electron Kinetic EnergyZINC - Zinc Is Not CopperZK - Zero KelvinZP - Zero PressureZr - ZirconiumZRE - Zinc Responsive Element
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