 10x10x10 = 1,000 = One thousand balls = 103
If each ball contained one cube you'd have:
100x100x100 = 1 million = 106
If you treat this massive cube as a single cube and arrange them in a 10x10x10 larger cube you'd have:
1000x1000x1000 = 1 billion = 109 = 1.0e9
Science tells us the Earth formed 4.54 billion years ago = 4.54e9,
and the universe formed 13.8 billion years ago =13.8e9.
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