Tag: Atomic Clock

The Long-lasting Definition of Kilogram has Changed

The Long-lasting Definition of Kilogram has Changed

Scientists have replaced the platinum-iridium cylinder with the Planck Constant to give birth to a new standard of kilogram. The world’s standard definition of the kilogram has finally been altered, after representatives from 60 countries voted in favor of redefining the International System of Units (SI) for mass. Since 1889, a platinum-iridium alloy cylinder, nicknamed…

Read More Read More

Models of Earth could be Improved by using Atomic Clocks

Models of Earth could be Improved by using Atomic Clocks

The latest development, at NIST, on Atomic Clocks might result in a redefinition of Second, the international unit of time. A clock device that uses an Electron Transition Frequency in the Optical, Ultraviolet, and Microwave region of the electromagnetic spectrum of atoms for its timekeeping element is called an Atomic Clock. They are the most…

Read More Read More