News of the WeekPhysics

Colliding Clouds May Hone Physical Constants

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Science  20 Apr 2007:
Vol. 316, Issue 5823, pp. 354
DOI: 10.1126/science.316.5823.354a

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Summary

According to work described in Nature this week, a new spin on the atomic clock could yield some of the most precise measurements to date of fundamental physical constants--potentially providing crucial experimental tests of a number of "theories of everything." (Read more.)