Earth’s rotation has been measured many times over — but never like this. In a first, scientists used entangled quantum particles called photons to reveal the rate at which the globe spins. The feat ...

A trio of physicists from Princeton University, CIT's Jet Propulsion Laboratory and Spectral Sensor Solutions, all in the U.S., is proposing the possibility of generating electricity using energy from ...

A team of scientists has developed a novel way to measure variations in the Earth's rotation. In their paper published in the journal Nature Photonics, the team explains how their new approach works ...

We consider the rotation set $\rho(F)$ for a lift $F$ of a homeomorphism $f: T^2 \rightarrow T^2$, which is homotopic to the identity. Our main result is that if a ...