GRAVITATION

GLOSSARY

• Spacetime Metrics - A metric defines the distance between two points. In spacetime we can define an event as something marked by the 4 coordinates x, y, z, and t.

• inverse-square law- in physics, is any physical law stating that a specified physical quantity or intensity is inversely proportional to the square of the distance from the source of that physical quantity.

• Geodesic - is a locally length-minimizing curve