There have been requests for more details on the Aluminum Quantum Clock.
You can read them for yourself at the URL cited below. EAM.
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New Calculations on Blackbody Energy Set the Stage for Clocks with
Unprecedented Accuracy [ http://www.nist.gov/pml/div684/bbr-050611.cfm ]"Fri,
06 May 2011 08:00:41 -0500"
A team of physicists from the United States and Russia announced today* that it
has developed a means for computing, with unprecedented accuracy, a tiny,
temperature-dependent source of error in atomic clocks. Although small, the ...
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