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I have a question. An often quoted analogy to describe the expansion of the universe is that of an expanding balloon, with points on the balloon representing galaxies. As the balloon expands, the points recede from each other, but doesn't the 'unit' of distance also expand with the balloon, so that the 'distance' between points remain the same? Can anyone care to enlighten me?
maxwellsdaemon7 2 years ago
@maxwellsdaemon7 No, the unit of distance stays the same, one foot = one foot.
The space is expanding.
gregrutz 1 year ago
cute model! hehehe.... :o) my kids will like it!
marcuso 4 years ago
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And it is We Who have constructed the heaven with might, and verily, it is We Who are steadily expanding it. (Qur'an, 51:47)
HighFlyingDutchman 4 years ago