Imagine that we put a raisin cake into the oven,with each raisin separated from the others by 1 cm.An hour later,we take it out and the distances between raisins are 3 cm.If you lived in one of the raisins and watched the other raisins as the cake expanded,which of the following would you conclude?
A)All raisins would be moving away from you at the same speed.
B)More distant raisins would be moving away from you faster.
C)More distant raisins would be moving away from you more slowly.
D)It depends: If you lived in a raisin near the edge of the cake,you'd see other raisins moving away from you,but they'd be coming toward you if you lived in a raisin near the center of the cake.
E)The raisins would be expanding too,so everything would look identical to the original situation.

Question

Quizplus · Accepted Answer

This is an analogy to the expansion of the universe. The distances between galaxies are increasing, and the farther a galaxy is from us, the faster it appears to be moving away. This is known as Hubble's law. Similarly, in the raisin cake analogy, the raisins farther away from us (the observer) would appear to be moving away faster.

Imagine That We Put a Raisin Cake into the Oven,with