Thanks to a speed-up of Earth's rotation, the length of the astronomical day and the length of the clock day aren't quite ...

Astronomical time fell behind atomic time by 2.5 milliseconds every day. That meant the atomic clock would say it's midnight and to Earth it was midnight a fraction of a second later, Agnew said.

Astronomical time fell behind atomic time by 2.5 milliseconds every day. That meant the atomic clock would say it’s midnight and to Earth it was midnight a fraction of a second later, ...

Earth's changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For the first time in history, world ...

The designers of Olomouc's astronomical clock had their sights set on the long term. They were "optimists," wrote the professional traveler Rick Steves. "The mechanism displaying the year is ...

Earth's changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For the first time in history, world ...

The astronomical clock has been repaired many times throughout the years, and the moving gears and components restored. On May 8, 1945, the tower nearly collapsed during Nazi attacks in World War II.

Earth's changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For the first time in history, world ...

Earth's changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For the first time in history, world ...