"When the two light beams meet up, they greet each other like long-separated friends and continue on as if nothing had separated them. In other words, if we were to measure the properties of the ...

Some days really are longer than others. And now scientists know by precisely how much. Using a laser gyroscope, scientists have measured variations in Earth’s rotation rate smaller than a millionth ...

Researchers in Italy are hoping to measure Earth's rotation using a laser-based gyroscope installed deep underground, with enough experimental precision to reveal measurable effects of Einstein's ...

Accurately sensing rotation is important to a variety of technologies, from today's smartphones to navigational instruments that help keep submarines, planes, and satellites on course. In a paper ...

Gyroscope designs used in inertial navigation systems (INS) fall into three basic groups: the classic spinning-rotor mechanical gyro (still in use in specialized situations due to its superior ...