A technological innovation could revolutionize the precision of navigation systems. A tiny device, shaped like a comb, promises to deliver unparalleled accuracy in the field ...

At the heart of this effort lies thorium-229, a rare isotope with a one-of-a-kind feature: it has a nuclear state that can be ...

Atomic clocks are the basis upon which a second is defined. But there is a new kid on the block, the optical clock, which ...

Atomic Digital Clock Auto Set (no back light) - Using radio frequencies broadcast ... Savings Time while set the DST on. Atomic Wall Clocks Battery Operated with Alarm - This digital calendar ...