- #1
query_ious
- 23
- 0
Hi,
A few days ago I attended an astronomy lecture and while explaining the basic theoretical background of astronomy the lecturer compared the expansion of the universe from the big bang onwards to a balloon filling with air.
Since the galaxies/stars are (loosely speaking) dots fixed on the surface of the balloon, they are not actually moving away from each other, rather the distance between them is increasing.
If so why don't we perceive this in daily life? Supposedly, as I write these lines the distance between my keyboard and I is increasing...
Thanks...
A few days ago I attended an astronomy lecture and while explaining the basic theoretical background of astronomy the lecturer compared the expansion of the universe from the big bang onwards to a balloon filling with air.
Since the galaxies/stars are (loosely speaking) dots fixed on the surface of the balloon, they are not actually moving away from each other, rather the distance between them is increasing.
If so why don't we perceive this in daily life? Supposedly, as I write these lines the distance between my keyboard and I is increasing...
Thanks...