Wednesday, December 12, 2007

How Super-Precise Atomic Clocks Will Change the World in a Decade

I won't even begin to summarize Wired's article, How Super-Precise Atomic Clocks Will Change the World in a Decade. Pretty amazing stuff.

"At F1's level of precision, even general relativity introduces problems; when technicians recently moved F1 from the third floor to the second, they had to re-tune the system to compensate for the 11-and-a-half foot drop in altitude."

If you don't know this is how your GPS works and NIST envisions new uses medical imaging and geological surveys. "That means passing a precise clock over different landscapes yields different gravity offsets, which could be used to map the presence of oil, liquid magma or water underground."

No comments: