For the experiment, they built a miniature version of the contraption at the heart of a famous experiment from the late 18th century, in which scientist Henry Cavendish measured the gravitational ...

A fundamental constant that sets the size of the gravitational force between all objects has finally been pinned down using the quirky quantum behavior of tiny atoms. The new results could help ...

New measurements of the gravitational constant confirm that the official value needs to be increased and, as John Moore reports, could explain what went wrong in a previous experiment. Ever since ...

Gravity, one of the four fundamental forces of nature, appears reassuringly constant across the Universe, according to a decades-long study of a distant pulsar. This research helps to answer a ...

Wanted: Gravitational Constant's True Value Scientists from numerous disciplines will brainstorm new strategies for measuring "Big G" in July.

It’s been 120 years since Henry Cavendish measured the gravitational constant with a pair of lead balls suspended by a wire. The fundamental nature of gravity still eludes our best minds - but ...

Gravity, one of the four fundamental forces of nature, appears reassuringly constant across the Universe, according to a decades-long study of a distant pulsar. This research helps to answer a ...

Using a pair of meter-long, vibrating metal beams, scientists have made a new measurement of “Big G,” also known as Newton’s gravitational constant, researchers report July 11 in Nature Physics.

These are things like the speed of light (c) the charge on an electron (e), and the Planck constant (h). These constants are determined with some type of interesting experiment.

The first experiment to measure Big G was conducted in 1798 by British scientist Henry Cavendish. He set up a clever device in which a dumbbell-like object with two lead balls on either end was ...

By Keith Cowing Press Release August 6, 2015 Filed under Astronomy, Cosmology, NRAO, Pulsar Pulsar NRAO Gravity, one of the four fundamental forces of nature, appears reassuringly constant across ...