Daylight, which contains blue light, helps to tell your internal clock when it’s time to start the day or to hit the hay. If you stare at a device that emits blue light (like your phone or ...

Light impacts the ticking of our internal clock — it tells our brain to be awake, while darkness signals that it’s time to sleep. That’s why screen time before bed can interfere with your sleep.

Sunrise alarm clocks are designed to gradually illuminate your bedside until a shift in light and sound finally wakes you. The idea is that it can help your sleep cycle shift more naturally ...

Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society ... which slows the rotation much like a spinning ice skater slows when extending their ...

Two studies show that the light emitted by nanocrystals embedded with luminescent ions can be used to sense forces with high spatial resolution — even when those forces are inside a microscopic ...

by making extremely accurate measurements of the frequency of light required to push thorium nuclei into a higher energy state – potentially defining the tick of a future nuclear clock.

While the Falcons prepare for a Sunday Night Football date with the Commanders, one that features the first primetime matchup in NFL history in which two first-round rookies are starting with ...

In new research, physicists have theorized a bold way to change it up by entangling two particles of very different kinds – a unit of light, or a photon, with a phonon, the quantum equivalent of a ...

Within most regions of the U.S., clocks are adjusted one hour ahead during summer months and then adjusted back an hour during the winter months. According to the U.S. Naval Observatory ...

Within most regions of the U.S., clocks are adjusted one hour ahead during summer months and then adjusted back an hour during the winter months. However, as of 2007, Daylight Saving Time in the U ...