home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!tdat!tools3!swf
- From: swf@tools3teradata.com (Stan Friesen)
- Newsgroups: sci.skeptic
- Subject: Re: Rocca di Papa
- Message-ID: <1781@tdat.teradata.COM>
- Date: 25 Jan 93 22:22:23 GMT
- References: <1993Jan17.195338.4654@rhrk.uni-kl.de> <1993Jan17.214909.4833@sol.ctr.columbia.edu>
- Sender: news@tdat.teradata.COM
- Distribution: world
- Organization: NCR Teradata Database Business Unit
- Lines: 20
-
- In article <1993Jan17.214909.4833@sol.ctr.columbia.edu>, slb22@cunixb.cc.columbia.edu (Seth "the Lesser") writes:
- |> kring@efes.physik.uni-kl.de (Thomas Kettenring) writes:
- |> >Who know anything about the street in Frascati called "Rocca di Papa"?
- |> >I heard that if you put a bottle on the street at a certain place, it'll
- |> >roll uphill.
- |>
- |> Places like this are moderately common; there's one within a couple of hours'
- |> drive of my hometown (the "Irish Hills" of Michigan). It's an optical
- |> illusion. The bottle is actually rolling downhill, but the unusual
- |> conformation of the landscape (or cityscape) around it makes it look as though
- |> it is going uphill.
-
- If you want a more controlled version of the same illusion - go to your local
- amusement park and visit the 'crooked house' - and watch billiard balls curve
- in a U and chairs 'stick' to the wall.
-
- --
- sarima@teradata.com (formerly tdatirv!sarima)
- or
- Stanley.Friesen@ElSegundoCA.ncr.com
-