Gravitational Field

October 28, 2023

To begin with, the speed of gravity has not been measured directly in the laboratory—the gravitational interaction is too weak, and…

September 2, 2023

Each galaxy is held together by strong gravitational forces. Even if you managed to get away from our sun, you would still experience…

July 11, 2023

After studying this section you should be able to: understand the concept of a field recall and use the relationship that describes…

May 2, 2023

One of the questions I get most often from my readers is this: Since gravity pulls on things proportional to their mass, and since…

May 2, 2023

This is a way of measuring how much gravity there is. The formula is: weight/mass = gravitational field strength. Gravitational field…

March 17, 2023

A quasar, the brightest type of object in the universe, is seen releasing massive amounts of energy as stars are shredded near the…

February 9, 2023

2]/2[pi]c) is the reduced sub-Planckian action constant, G is the Newtonian gravitational constant, and c is the velocity of light.j]…

January 31, 2023

Gravity is the force that acts between any two masses, which means that you are actually attracted to all your friends, no matter how…

January 13, 2023

We ve all heard the story. A young Isaac Newton is sitting beneath an apple tree contemplating the mysterious universe. Suddenly…

January 6, 2023

Valery V. Nesvizhevsky, Hans G. Börner, Alexander K. Petukhov, Hartmut Abele, Stefan Baeler, Frank J. Rue, Thilo Stöferle, Alexander…

December 28, 2022

The gravitational field intensity (EG) or (g) is the force on a unit mass at a point in the field. Since the force (F) on a body of…

June 18, 2017

For irregular, nonspherical mass distributions in three dimensions, Newton’s original vector equation (4) is inefficient, though theoretically…