Consider a two dimensional spacetime with coordinates (x, t) and the metric where h is a known constant. determine the christoffel symbols and the equation for a geodesic t(s), x(s). solve this equation for the case of a light-like geodesic with initial conditions t(0) to, (0o)

when the velocity of a mass on a spring is zero, the acceleration is at a maximum .

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

prndulum needs thread, weight clock to time swings