2006-11-08 09:31:17 · 4 answers · asked by goring 6 in Science & Mathematics ➔ Physics
The smallest anything can be is called Plank length and it is approximately 1.6 × 10 (to the -35th power) meters.
Assuming "we" is the earth, we are very small compared to the size of the universe. The "volume" of the observable universe is about 1.9 × 10 (to the 33rd power) light years, and the earth has a volume of approximately 8.2 x 10 (to the 12th power) miles, or 4 x 10 (to the -26 power) of a light year. The universe, then, is about 4.7 x 10 (to the 58th power) times bigger than the earth.
2006-11-08 14:52:30 · answer #1 · answered by The Doctor 7 · 0⤊ 0⤋
The universe is 14 000 000 000 years old, so the light from the big bang has been on its voyage for that long.
Light takes 6 nanoseconds (0.000 000 006 seconds) to go the length of your body.
Check out the ratio of these times, and then take to the power 3.
This gives you a big number which may or may not satisfy you.
Think up other ways of doing the comparison.
2006-11-08 17:49:23 · answer #2 · answered by Rufus Cat 3 · 0⤊ 0⤋
As small as a micromolecule. As for the Universe....I'd say don't think about it. You can try NASA or look up for the American Scientist or Astrononmy magazines. We probably are the same (as a micromolecule) to the universe, as an atom is to us.
2006-11-08 17:38:41 · answer #3 · answered by ? 2 · 0⤊ 0⤋
If your house was the size of the Observable Universe, our solar system would be smaller than a speck of dust.
2006-11-08 17:37:08 · answer #4 · answered by Scarp 3 · 1⤊ 1⤋