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- Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!sdd.hp.com!col.hp.com!cab
- From: cab@col.hp.com (Chris Best)
- Newsgroups: rec.railroad
- Subject: Re: Unusual tunnels?
- Date: 23 Dec 1992 15:28:20 GMT
- Organization: your service
- Lines: 21
- Message-ID: <1ha0ikINNl7l@hp-col.col.hp.com>
- References: <3840010@hplred.HPL.HP.COM>
- NNTP-Posting-Host: hpctdke.col.hp.com
-
- > Although this may not be news, the tunnels and loops we are
- > talking about here are helixes not spirals...
- > A spiral lies in the same plane and does not gain elevation...
-
- ----------
-
- No, it isn't news. Because it's wrong.
-
- A few of the definitions of "spiral" in The American
- Heritage Dictionary:
-
- "The three-dimensional locus of a point moving parallel
- to and about a central axis at a constant or continuously
- varying distance; helix."
-
- "Coiling in a constantly changing plane; helical."
-
- And the photo is of a spiral staircase. Guess we've been
- naming THAT wrong all this time, too?
-
- This ain't trains. Let's talk trains.
-