#### Gravitational field strength on Earth

A field is something that has a magnitude and a direction at every point in space. Gravity is a good example - we know there is an…

Read More#### Gravitational field formula

The Schwarzschild radius (sometimes historically referred to as the gravitational radius ) is the radius of a sphere such that, if…

Read More#### Higgs field and gravity

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

Read More#### Gravitational Fields

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

Read More#### What is gravitational field?

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

Read More#### What is the relativity theory?

Relativity is one of the most famous scientific theories of the 20th century, but how well does it explain the things we see in our…

Read More#### Gravitational field Lines

This episode introduces the notion of a field of force and how we can diagrammatically represent such a field using field lines…

Read More#### Earth gravitational field strength

The geoid is a hypothetical Earth surface that represents the mean sea level in the absence of winds, currents, and most tides. The…

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