Video: Laser clocks for global accuracy

Video: Laser clocks for global accuracy
A new laser clock from DLR has achieved a record level of accuracy for future space clocks. In 30 million years, it would only be one second off. The quantum properties of iodine molecules in a gas cell set the optical clock’s rhythm. In the future, space-qualified laser clocks should enable satellite navigation with centimetre precision and provide a global time standard.
Duration:00:01:50