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MOTION MOUNTAIN

LIGHT, CHARGES AND BRAINS - Motion Mountain

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electromagnetic effects and challenges 221<br />

TA B L E 17 (Continued) Selected matter properties related to electromagnetism.<br />

Property Example Definition<br />

photorefractivematerials Bi 12 SiO 20 , LiNbO 3 ,<br />

GaAs,InP<br />

Augereffect Augerelectron<br />

spectroscopy<br />

Braggreflection crystalstructure<br />

determination<br />

Mößbauereffect<br />

57 Fe,usedfor<br />

spectroscopy<br />

lightirradiationchangesrefractiveindex<br />

electronemissionduetoatomic<br />

reorganizationafterionizationbyX-rays<br />

X-raydiffractionbyatomicplanes<br />

recoil-free resonantabsorptionofgamma<br />

radiation<br />

paircreation Pb transformationofaphotoninacharged<br />

particle–antiparticlepair<br />

photoconductivity Se,CdS changeofresistivitywithlightirradiation<br />

optoacousticeffect,<br />

photoacousticeffect<br />

Lightemission<br />

gases,solids<br />

creationofsoundduetoabsorptionof<br />

pulsed light;usedforimagingofanimal<br />

andhumantissue<br />

luminescence:general term GaAs,tv lightemissionbycoldmatter<br />

foroppositeof<br />

incandescence<br />

fluorescence<br />

CaF 2 ,X-ray<br />

production,light<br />

tubes,cathoderay<br />

tubes,televisiontubes,<br />

dyes,coloured<br />

polymers,doped<br />

crystals<br />

lightemissionduring andafterlight<br />

absorptionorotherenergy input<br />

phosphorescence<br />

TbCl 3 ,crstalsdoped<br />

withheavymetals<br />

lightemissionduetolight,electrical or<br />

chemicalenergy input,continuinglong<br />

after stimulation<br />

emissionoflightduetoelectronhole<br />

recombinationatp-njunctions<br />

semiconductor<br />

luminescence<br />

light-emisstingdiodes<br />

(LEDs),pointerlasers<br />

electroluminescence ZnSpowder emissionoflightduetoalternating<br />

electrical field<br />

photoluminescence ZnS:Cu, lightemissiontriggered byUVlight,used<br />

SrAlO 4 : Eu, Dy, insafetysigns<br />

hyamine<br />

chemoluminescence H 2 O 2 ,phenyloxalate<br />

ester,dyesolutions<br />

chemically excited coldlightemission,<br />

usedinlightsticksfordiversandfun<br />

bioluminescence glow-worm,deep sea<br />

fish<br />

coldlightemissioninanimals,specialtype<br />

ofchemoluminescence<br />

triboluminescence sugar lightemissionduring frictionorcrushing,<br />

notprectical forlighting<br />

Motion Mountain – The Adventure of Physics copyright © Christoph Schiller June 1990–November 2015 free pdf file available at www.motionmountain.net

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