Tag: The Universe in a Box
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How Big is the Universe? (Universe in a Box, Part 4)
The story so far: we imagine a huge box surrounding us, with sides hundreds of millions of light-years across. This cosmic box contains all the stuff of the whole universe in the same proportions; it grows as the universe expands, so its history traces that of the entire universe. We ended up able to talk…
Galileo's Pendulum 