What is the smallest possible thing in the universe?Quicklink submitted by Kyle McDermott Permalink
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|Strings can vibrate, and this allows us to explain all of the strange fundamental particles which we see as different vibrations of the strings - different notes from a cosmic violin... If space is composed of lots of small grains, then our problem can be solved, since no two particles can ever be closer together than the size of a grain. Achilles would move along in a series of small, but finite, steps. By looking at particles travelling over huge distances across the cosmos, we hope to see the accumulated effect of bumping along lots of tiny grains, rather than gliding through the smooth space which we imagine. In the end, the answers will be found in experiments, not in our imaginations. Perhaps the most amazing thing we have discovered is the scientific method, which allows us to pose and answer questions like 'How small is the Universe?'. Not bad for slightly evolved cavemen!|
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