$0.00
Use a balloon to create a 2-D analogy to the 3-D expansion of the universe. This can be used to disprove the notion that there is a “center” to the universe. It can also be used to explain how galaxies move away from each other uniformly.
(8C10.35) Expansion
$0.00
Use a balloon to create a 2-D analogy to the 3-D expansion of the universe. This can be used to disprove the notion that there is a “center” to the universe. It can also be used to explain how galaxies move away from each other uniformly.
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