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Reading a quantum clock uses more energy than operating it

Quantum timekeeping is supposed to be the ultimate in efficiency, with tiny devices that tick using the rules of quantum mechanics instead of swinging pendulums or vibrating quartz. Yet new work on a ...

It took a phone ban for some teachers to realize kids don’t know how to read a clock.

Just like writing cursive, it seems that reading an old-school analog clock is the sort of skill that has fallen by the wayside in our smartphone age. That lapse was revealed when NYC public schools ...

With phones banned, some students realise they don’t remember how to read analog clocks in school

Some New York City schools banned phones to improve focus, but the move revealed a new issue. Many students have forgotten ...
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Reading a quantum clock takes more energy than operating it

The steady tick of a clock usually feels simple and dependable. Something swings or vibrates in a controlled rhythm and marks the passing of each moment. What you rarely notice is the hidden cost ...