A century after Albert Einstein sketched out his radical picture of gravity, astronomers have now watched a black hole ...

Earth's axial precession is a gyroscopic wobble, analogous to a spinning top, causing its axis of rotation to trace a cone over time. The primary cause of Earth's precession is the gravitational ...

The precession of the equinoxes refers to the precession of Earth's axis of rotation with respect to inertial space. The precession of the equinoxes is caused by the differential gravitational forces ...

Physicists have demonstrated the spin pumping effect in magnetic layers for the first time experimentally. The behavior of the spin pumping had previously only been predicted theoretically. Scientists ...

A spin measured by an observer in a rotating frame appears to precess faster or slower depending on Ω, the rotational angular frequency of the frame. This can be thought of as arising from an ...

Day length was as short as 19 hours in Earth's past because the Moon was closer, finds new research. Earth may currently be spinning faster, but a day on our planet lasts 24 hours largely because of ...

An investigation carried out by the astrophysicists of the Instituto de Astrofísica de Canarias (IAC) ?ofia Chrobáková, a doctoral student at the IAC and the University of La Laguna (ULL), and Martín ...

Neutron stars are the classic example of a synthesis between quantum mechanics and gravity. Formed after the collapse of the remnants of a supernova, a neutron star is generally smaller than the earth ...