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University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
BuyFindarrow_forward

University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
Textbook Problem

Describe the balloon analogy for cosmological expansion. Explain why it only appears that we are at the center of expansion of the universe.

To determine

To describe:

The balloon analogy for cosmological expansion.

Explanation

Introduction:

Cosmological expansion reefers to a type of expansion in space. It is caused when particles like dust, stars, planets and light pass quickly through the space.

The analogy of a balloon when it is filled is used to explain the phenomenon of cosmological expansion. In the figure, the dots on the balloon represent the galaxies and the skin of the balloon is considered 4-dimensional space-time...

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