Evolution of Atomic Clocks 1949 – The First Atomic Clock ・Harold Lyons at the U.S. National Bureau of Standards (now NIST) developed the first atomic clock using the ammonia molecule.

Humanity is closer to destroying itself, according to atomic scientists who revealed on Tuesday that the famous “Doomsday Clock” was set to 89 seconds to midnight — the closest it has ever been.

Scientists and global leaders revealed on Tuesday that the "Doomsday Clock" has been reset to the closest humanity has ever come to self-annihilation. For the first time in three years, the ...

Atomic scientists moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine and other factors underlying the risks of global ...

The Bulletin of the Atomic Scientists set the Doomsday Clock to 89 seconds to midnight, one second more than the last two years, attributed to threats posed by climate change and artificial ...

Atomic Batteries are some of the most important and valuable items in Atomfall. However, finding them can be tricky (without our help, anyway).

For more about Holly's Optical Atomic Strontium Ion Clock, check out the OASIC project on NASA's website. For more about the Longitude Problem, check out Dava Sobel's book, Longitude.

World’s most accurate clock requires a 2-mile laser beam It measure a second down to the 19th decimal. Andrew Paul Jul 14, 2025 4:09 PM EDT ...

A clock network would allow geodesists to compare the ticking of clocks all over the world. They could then use the variations in time to map Earth’s gravitational field much more precisely, and ...

An atomic grandfather clock maintains the mechanical pendulum design but will also self-correct to synchronize to various time standards. This will allow for accurate time keeping while maintaining ...