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Praseodym
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Revision as of 20:22, 25 April 2010 by
Beispielname
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Gelb gefärbtes Glas in Schweisserschutzbrillen
m. Magnesium f. hochfeste Metalle in Flugzeugmotoren und Dauermagneten
2002 gelang es Forschern Licht von 300 000 km/s mithilfe eines praseodymgeimpftem Yttriumsilikatkristall auf 45 m/s zu bremsen, wow!