Time & frequency
Philosophically, what is "time"? Timekeeping is a concept of marking time. This bizarre human endeavor, to measure time, has created the most accurate measuring device, the atomic clock. In the process, we created technologies that define our time.
NIST and the Nobel: Dave Wineland
In a closely related line of research, Wineland and the members of his laboratory group have used laser-cooled ions to build new, ultra-precise atomic clocks, several of which have held the world record for accuracy. Laser-cooled clocks now set primary time and frequency standards around the world.
Learn more about Dave and his Nobel Prize-winning research on our NIST and the Nobel site.