Nigel Barnes, a fifth-generation horologist, acknowledges that it is a “tall order” to learn to fix a clock in two days. But some manage it, he said. Nigel Barnes working with Seán Martin, who had ...

Scientists built a tiny clock from single-electron jumps to probe the true energy cost of quantum timekeeping. They discovered that reading the clock’s output requires vastly more energy than the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Picture a clock ...