Category: Technology > "Timekeeping"
One of the most revolutionary technologies that significantly altered our understanding of time is the atomic clock. Developed in the mid-20th century, atomic clocks use the vibrations of atoms—specifically cesium or rubidium—to measure time with unparalleled precision. The first atomic clock, built in 1955, was so accurate that it would not lose or gain a second over millions of years. This remarkable accuracy has not only allowed for the synchronization of global communication systems, such as GPS, but has also led to advancements in various scientific fields, including quantum mechanics and astronomy. As a result, atomic clocks have become the standard for defining the second, the base unit of time in the International System of Units (SI), showcasing how a single technological innovation can have profound effects on both our scientific understanding and daily lives.