The article said that this was the first time atomic clocks were taken out of the lab to do this experiment, but definitely not the first time: http://www.leap

The article said that this was the first time atomic clocks were taken out of the lab to do this experiment, but definitely not the first time: http://www.leapsecond.com/great2005/tour/ http://www.leapsecond.com/great2005/tour/ My favorite part is where he notes that with kids everything has to be exactly equal: "three kids, three clocks, three sodas." My somewhat fuzzy arguments with my brothers make me think he is a wise man.