This accurate one-pulse-per-second clock is made with a few common parts and driven from a 50 or 60 Hertz mains supply but with no direct connection to it. A beep or metronome-like click and/or a ...

On Jan. 28, the Doomsday Clock was set to 89 seconds to midnight, highlighting an encroaching closeness to "global catastrophe." By moving closer to the metaphorical midnight on the Doomsday Clock, ...

The world is closer than ever before to total apocalypse, the scientists behind the Doomsday Clock have warned. The Bulletin of the Atomic Scientists – the group that sets the time of the clock, which ...

'Doomsday Clock' moves one second closer to midnight, increasing 'extreme danger' The Bulletin of Atomic Scientists moved the Doomsday Clock one second closer to midnight, meaning humanity is closer ...

Atomic clocks record time using microwaves to measure the frequency of quantum vibrations of electrons. They are the basis upon which a second is defined. But there’s a new kid on the block, the ...

Inside a laboratory nestled in the foothills of the Rocky Mountains, amid a labyrinth of lenses, mirrors, and other optical machinery bolted to a vibration-resistant table, an apparatus resembling a ...