Spacecraft timing systems must provide highly stable, precise signals for navigation, communications and scientific instruments, even when GNSS signals are weak or unavailable. Designers often rely on ...

There are lots of different ways to build a clock. [Sciter_] came into the possession of some old calculator parts, and ...

This important work introduces an integrated open-source platform for behavioral acquisition and pose estimation that substantially improves the accessibility and speed of real-time animal tracking ...

For the first time, scientists used an atomic nucleus as a clock. The world’s most precise timepieces are made using atoms, specifically their electrons. But clocks based on atomic nuclei — protons ...

DIYer and woodworker April Wilkerson shares her design and process from a clock build-off project. He was fooling around on the edge - then his hand suddenly slipped Coffee found to have startling ...

A powerful molecular clock calibrated using data on gene activity from thousands of individuals can predict biological ageing in rodents, monkeys and humans — and time to death in people 1. “Even if ...

Time might be even stranger than Einstein imagined. Physicists are now exploring the possibility that a single clock could exist in a quantum superposition, ticking both faster and slower at the same ...

The figure of Tithonus in Greek mythology offers a reflection on the paradox of permanence. In pleading with Zeus for immortality, he forgot to request eternal youth, resulting in a life of endless ...

Few concepts in physics are as familiar, yet as enigmatic, as time. In Einstein's theory of relativity, time is not absolute: its passage depends on motion and gravity. But when combined with quantum ...

Most clocks, from wristwatches to the systems that run GPS and the internet, work by tracking regular, repeating motions. To build a clock, you need something that ticks in a perfectly repeatable way.