956 KB13 KB200820262013Strnad, Janezštevilka:4letnik:60str. 137-142ISSN:0473-7466COBISSID:16787801URN:URN:NBN:SI:doc-SGRGHVAMslDruštvo matematikov, fizikov in astronomov SlovenijeObzornik za matematiko in fizikoBoltzmanova konstantafizikakelvinphysicstemperaturaNa poti do novega kelvina|The General Conference on Weights and Measures has recommended that the kelvin should be based on the Boltzmann constant. At the British National Physical Laboratory this constant was measured with a relative uncertainity less then 1 ppm. Thereby some difficulties had to be surmounted. The constant was measured in other metrological laboratories as well. Some used the same method of measurement and some used other ones. The decision concerning a new definition will depend on future maesurementsGeneralna konferenca za uteži in mere je priporočila, naj bi kelvin vezali na Boltzmanovo konstanto. V angleškem Državnem fizikalnem laboratoriju so to konstanto izmerili z relativno negotovostjo, manjšo od milijonine. Pri tem so morali premagati precej težav. Tudi v drugih metroloških laboratorijih so konstanto izmerili kar se da natančno. Nekateri so uporabili enak, drugi pa drugačen merilni način. Odločitev o novem dogovoru bo odvisna od merjenj v prihodnostiTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaDruštvo matematikov, fizikov in astronomov