Detailed text transcripts for TV channel - MSNBC - 20111230:21:47:00
It has to do with the vibration of a cesium atom. so you have a committee to vote on how many vibrations constitute one second. we think of time as a hard and fast thing. it really is. it's completely, totally subjective. so the professor's alternative is actually really no better. as long as we make the little corrections, and i think it's really fun to have a little extra variation there. >> we're having fun with this, obviously, but it's true that over the centuries, our whole notion of the workweek itself has changed. i know we've got a graphic we can put up. in the roman empire, there wer...
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