Are atomic clocks necessary? Do they really make a difference?
By JR MinkelPosted 11.25.2004 at 5:00 pm 0 Comments
The average wristwatch gains or loses about one second every few days, and undoubtedly, few of us notice the difference. But marking time accurately is crucial to some modern technologies. Atomic clocks—which base their ticks on the oscillations between the nucleus of an atom and its surrounding electrons—enable GPS navigation and ensure the proper timing of space probe launches and landings.