why time moves differently while closer to a massive body?

Question

why time moves differently while closer to a massive body?

In: 50

Answer 1

You have a rubber sheet stretched out flat. You also have a magical marble that rolls across the sheet at a steady rate. You mark two dots on the sheet, and time how long it takes the marble to get from one to the other.

Now put a bowling ball between the two dots. The sheet stretches downwards from the massive body warping it, leaving it down in a bit of a well.

Now let the magical marble roll from one dot to the other again. It will take it much longer to make the trip, because the massive body is pulling on the sheet around it.