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- Path: sparky!uunet!pipex!demon!cix.compulink.co.uk!kjackson
- Newsgroups: alt.fan.pratchett
- From: kjackson@cix.compulink.co.uk (Keith Jackson)
- Subject: Re: lots o' questions&annotations for Mort
- Reply-To: kjackson@cix.compulink.co.uk
- Date: Fri, 20 Nov 1992 07:43:00 +0000
- Message-ID: <memo.760299@cix.compulink.co.uk>
- Sender: usenet@gate.demon.co.uk
- Lines: 22
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- In article <1992Nov14.201417.14868@sol.ctr.columbia.edu>, slb22@cunixb.cc.columbia.edu (Seth L. Blumberg) writes:
- >In fact, the first recorded steam engines were built in Ephebe (that's
- >Greece), more or less exactly as depicted in _Small Gods_. I believe 'twas
- >Archimedes whose writings on steam engines have survived to the present day.
- >They did, in fact, use copper spheres as heating vessels, and these spheres
- >did, in fact, have a regrettable tendency to explode, which is what limited
- >their use until some bright person thought of adding overpressure relief
- >valves.
-
- I thought that the revolving sphere turbine was attributed to Hero of
- Alexandria?
-
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-
- **********************************************************
- * Keith Jackson - kjackson@cix.compulink.co.uk *
- * - 2:250/413.4@fidonet.org *
- * -90:104/109.0@nest.ftn *
- **********************************************************
- * Rock testing is a smashing job. *
- **********************************************************
-