atomic time

Atomic time is a precise way of measuring time based on the vibrations of atoms, specifically cesium or rubidium atoms. These atoms oscillate at a consistent frequency when energy is added, allowing scientists to define a second based on these vibrations. Atomic clocks, which use this principle, are incredibly accurate, deviating less than a second over millions of years. This precision is essential for technologies like GPS, telecommunications, and scientific research. Unlike traditional timekeeping that relies on Earth's rotation, atomic time provides a universal standard that underpins modern timekeeping systems.