Astr 204 November 27, 2001 

Review of curved space-time:

Gravity and curved space

Geodesic

Euclidean geometry

An example of curved space in 2-dimensions

Rules of geometry change

Geometry simulates gravity

Geometry

Calculating curvature

Curved space

Question 1:Different perceptions?

Question 2:Counting galaxies

Explanation

A better test!

Angular size and distance

Parallel lines

Perception changes depending on scale

"Standard rod"

Question 3:Good idea?