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    File : 1270248874.jpg-(563 KB, 2791x3668, Cherenkov effect.jpg)
    563 KB Anonymous 04/02/10(Fri)18:54 No.947933  
    Cherenkov radiation (also spelled Cerenkov or Čerenkov) is electromagnetic radiation emitted when a charged particle (such as an electron) passes through an insulator at a constant speed greater than the speed of light in that medium. The characteristic blue glow of nuclear reactors is due to Cherenkov radiation. It is named after Russian scientist Pavel Alekseyevich Cherenkov, the 1958 Nobel Prize winner who was the first to characterise it rigorously.
    >> Anonymous 04/02/10(Fri)19:01 No.947936
    Thank you. Always wondered why the water is blue in nuclear plants.
    >> Anonymous 04/02/10(Fri)19:10 No.947945
    >>947933
    >greater than the speed of light
    >> Anonymous 04/02/10(Fri)19:26 No.947958
    >>947945
    >>947945

    >implying that the speed of light is constant
    >> Bat Guano 04/02/10(Fri)19:43 No.947968
         File1270251818.jpg-(132 KB, 1024x768, Cherenkov radiation.jpg)
    132 KB
    >> Anonymous 04/02/10(Fri)19:47 No.947970
    While relativity holds that the speed of light in a vacuum is a universal constant (c), the speed at which light propagates in a material may be significantly less than c. For example, the speed of the propagation of light in water is only 0.75c. Matter can be accelerated beyond this speed during nuclear reactions and in particle accelerators. Cherenkov radiation results when a charged particle, most commonly an electron, travels through a dielectric (electrically polarizable) medium with a speed greater than that at which light would otherwise propagate in the same medium.
    >> Anonymous 04/02/10(Fri)19:47 No.947971
    >>947945
    As it travels through a medium, light is slower than the usual 300,000 km/s. The slowing of light is nothing new or revolutionary. Using some condensates, scientists have almost stopped light in it's place.
    >> Bat Guano 04/02/10(Fri)19:48 No.947973
         File1270252095.jpg-(3.06 MB, 2250x2850, Cerenkov Radiation Effect in t(...).jpg)
    3.06 MB
    Cerenkov Radiation Effect in the Reed Research Reactor.

    Patience, little friend; one day I shall feed you the WORLD.
    >> Bat Guano 04/02/10(Fri)19:54 No.947980
         File1270252479.jpg-(871 KB, 1280x851, Cherenkov radiation reactor co(...).jpg)
    871 KB
    Reactor core of the Gösgen Nuclear Power Plant.
    >> Bat Guano 04/02/10(Fri)20:06 No.947985
         File1270253194.jpg-(1008 KB, 1605x1169, US nuke Medium Atomic Demoliti(...).jpg)
    1008 KB
    >>947971
    They were able to produce pictures of frozen light?

    Internal view of a Medium Atomic Demolition Munition (nuclear landmine) produced by the United States from 1965 to 1986. From left to right: packing container, warhead, code-decoder unit, firing unit.

    The MADM had a relatively low yield for a nuclear weapon (1-15 kilotons) though in human terms it would still be increadibly powerful. The entire unit weighed less than 400 lbs.
    >> Anonymous 04/02/10(Fri)20:12 No.947990
    >>947933
    >>947958
    >>947970
    >>947971
    IMO:
    c is always constant. When a photon "travels through" a medium, it sometimes travels through the empty space between particles, and sometimes it gets absorbed - and a new photon is emitted a short time later.
    Mind you I haven't studied physics that much.
    >> Anonymous 04/02/10(Fri)20:19 No.947996
    >>947990
    >Mind you I haven't studied physics that much.
    Obviously
    Light is as much particle as wave.
    for more - >>>/sci/
    >> Anonymous 04/02/10(Fri)20:44 No.948017
    >>947936
    Amazing stuff. Thanks!
    >> anonymous 04/02/10(Fri)20:45 No.948018
    man, i wish i could find a field in physics that i DIDNT want to change my major to... >.<
    >> Anonymous 04/02/10(Fri)21:00 No.948030
    >>947990
    c is only constant in a complete and utter vacuum... to an observer in the same time-space reference
    >> Anonymous 04/02/10(Fri)23:44 No.948244
    >>948030
    well, technically, the speed of light is constant in relation to the medium it is passing through.
    >> Anonymous 04/02/10(Fri)23:56 No.948263
    >>947970
    Sweet cut-n-paste wikipedia job
    >> Anonymous 04/03/10(Sat)06:30 No.948622
    Is THAT why my computer glows blue?
    >> Anonymous 04/03/10(Sat)08:51 No.948697
    >>948622
    No, that is because of the stupid bling bling lights they install in cases these days.
    >> Anonymous 04/03/10(Sat)08:57 No.948702
         File1270299460.jpg-(104 KB, 1024x819, godzilla-4.jpg)
    104 KB
    >> Anonymous 04/03/10(Sat)09:57 No.948744
    >>947996
    He said nothing about light being a particle or a wave, fucktard. learn2readingcomprehension.
    >> Anonymous 04/03/10(Sat)09:58 No.948746
    >>948697
    You, sir, win one internet for that reply.

    Made me laugh out loud.
    >> Anonymous 04/03/10(Sat)10:31 No.948776
    >>948244
    yeah, but what *is* a medium? particles separated by space.

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