Also known as "Big G" or G, the gravitational constant was first defined by Isaac Newton in his Law of Universal Gravitation formulated in 1680. It is one of the fundamental constants of nature ...

Using two separate tests, scientists have measured a new value for a fundamental natural quantity – G, the gravitational constant – that is slightly higher than previous experiments. Though ...

In 1798, Henry Cavendish set the standard for laboratory experiments to measure the gravitational constant using a technique called the torsion balance. That technique relies on a sort of modified ...

Gravity, one of the constants of life, not to mention physics, is less than constant when it comes to being measured. Various experiments over the years have come up with perplexingly different ...

Big G, known formally as Newton’s gravitational constant, describes the strength of gravity. But its precise value remains a mystery. Neil Webb ...

According to Newton’s universal law of gravitation, the gravitational force (F) that attracts two objects of mass m 1 and m 2 separated by a distance d is given by Gm 1 m 2 /d 2.The first measurement ...

("Big G" is different from "little g," which is the local gravitational acceleration on Earth.) In 1798, scientist Henry Cavendish calculated big G in order to determine Earth's mass.

The gravitational constant of the Universe, G, was the first constant to ever be measured. Yet more than 350 years after we first determined its value, it is truly embarrassing how poorly known, ...

Researchers have redetermined the gravitational constant G using a new measurement technique. Although there is still a large degree of uncertainty regarding this value, the new method offers ...

Two experiments measuring the tiny gravitational attraction between objects in a lab have measured Newton’s gravitational constant, or Big G, with an uncertainty of only about 0.00116 percent.

The strength of this force depends on the gravitational constant. Denoted by a ‘G’, it is a fundamental physical constant. It was first accurately determined by Henry Cavendish in 1797.