Thematic tours > Questions about time
Questions about time
For illustrations and detailed information on atomic clocks, transfer of time, research topics, and more, see the pages published by the PTB Working Groups " 
Unit of Time", " Dissemination of Time" and " Optical Clocks"
Do you want to know more about Einstein and the time? Then visit the 
website "Einstein-online".
© Physikalisch-Technische Bundesanstalt, last update: 2011-08-08, Volker Großmann 
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