From Physical Review A, a new method for keeping precise (like nearly atomic clock precise) time using a diamond and a laser:
Frequency standards based on atomic states, such as Rb or Cs vapors, or single-trapped ions, are the most precise measures of time. Here we propose and analyze a precision oscillator approach based upon spins in a solid-state system, in particular, the nitrogen-vacancy defect in single-crystal diamond.
Oh good, now if Jay-Z is still worried about his Rolleys that don’t tick-tock, or his Audamars that’s losing time hidden behind all those big rocks, he can just shoot a laser at them.
(yep, I just attempted a Watch the Throne / Nature magazine crossover joke. goodnight, everybody!)