For decades, scientists have tried to build a device even more precise than an atomic clock, which keeps time using electrons, the negatively charged particles that whiz around in an atom. Now, two ...

For more than 50 years, people around the world have reported a low-frequency hum. It was unique to coastal U.K. cities at first, but spread throughout the world. Theories suggest it could be factory ...

The twice-yearly ritual has roots in cost-cutting strategies of the late 19th century. A recent effort to end it has stalled in Congress. By Alan Yuhas Hello. You may be here to learn when daylight ...

Two teams of physicists have made the world’s first nuclear clocks. These radical new devices keep time using fluctuations in the energy states of an atom’s nucleus, rather than those of its electrons ...

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Here’s what you’ll learn when you read this story: For more than 50 years, people around the world have reported a low-frequency hum. It was unique to coastal U.K. cities at first, but spread ...

The City of West Haven has determined what has been causing a persistent hum that had been plaguing several neighborhoods for years. In January, the city hired a sound engineering company to do a ...