A laser gyroscope measured tiny variations in the lengths of days on Earth
The results could help scientists understand the complex flows of water and air on Earth
The ring laser gyroscope, G, measures tiny variations in Earth’s rotation. Developed by physicist Ulrich Schreiber (pictured with the gyroscope) and colleagues, the gyroscope uses the interference of laser beams to reveal the Earth’s spin.
A. Heddergott/TU Munich