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- From: smorris@tweedledum.ucsb.edu (Stephen Morris)
- Newsgroups: sci.physics
- Subject: Re: Why are elementary particles small?
- Keywords: baseballs, elementary particles, schrodinger
- Message-ID: <7276@ucsbcsl.ucsb.edu>
- Date: 6 Jan 93 21:37:11 GMT
- References: <1993Jan3.235010.17976@math.ucla.edu>
- Sender: root@ucsbcsl.ucsb.edu
- Reply-To: smorris@tweedledum.ucsb.edu (Stephen Morris)
- Distribution: world, rec, usa, na
- Lines: 30
-
- In article <1993Jan3.235010.17976@math.ucla.edu> barry@arnold.math.ucla.edu
- (Barry Merriman) writes:
- >Why are elementary particles small?
- >
- >Clearly, the ones that comprise our bodies must be much smaller than
- >ourselves, but why are there no other elementary particles that are
- >the size of, say, a baseball?
- >
- >If there were an elementary particle the size of a baseball,
- >what color would it be? What would happen if you touched it?
- >
-
- If I saw an elementary particle the size of a baseball, I certainly
- *would not* touch it!
-
- Aren't "elementary" particles supposed to be point-like? Or little strings or
- something? One as big as a baseball seems to contradict this definition of
- "elementary". A point-like particle as heavy as a baseball would be its own
- black hole ... an excellent argument against touching it!
-
- I recently read Erwin Schrodinger's little book called "What is life?". The
- question of why atoms are so small is discussed there. He starts with
- essentially thermodynamic considerations to argue that people must be much
- larger than atoms to be stable against thermal fluctuations. He then exposes
- the apparent contradiction that genes seem to be too small to be stable by this
- argument, and is lead to conclude that the basis of genetics must be a molecule
- with stable isomers of the molecule forming a code ... all this before the
- discovery of DNA! A great book, available from Cambridge University Press.
-
- S.
-