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What is the smallest possible thing in the universe?

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Headlined to H4 9/4/12
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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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The smallest thing in the Universe is ... the comb... by Alex Howard on Tuesday, Sep 4, 2012 at 10:12:06 AM
That made me laugh out loud! That was a good one! ... by Kyle McDermott on Tuesday, Sep 4, 2012 at 7:03:21 PM
"In the end, the answers will be found in experime... by Daniel Geery on Tuesday, Sep 4, 2012 at 11:57:41 AM
In my opinion, the human imagination is amazin... by Kyle McDermott on Tuesday, Sep 4, 2012 at 7:29:59 PM
there's the reciprocal action, where experiment ca... by Jim Arnold on Tuesday, Sep 4, 2012 at 8:39:56 PM
"It turns out that quantum mechanics and Einstein'... by Jim Arnold on Tuesday, Sep 4, 2012 at 5:55:53 PM
Science equals mammon. You don't need imaginat... by Ned Lud on Wednesday, Sep 5, 2012 at 8:14:47 AM