These pages are still under development. For an overview in print of the scientific subjects see T E Rihll Greek Science OUP, 1999, ISBN 019-922395-5 and ISSN 0017-3835 (Greece & Rome New Surveys in the Classics 29) £7.95. Now (2008) published by CUP at about £11.
Biology and Medicine
For Medicine see also here for a general site, and Virginia University here for medical instruments.
For an outline of my paper on light and colour perception in Greek science see here.
In due course there will be more pages on this; for the moment for plumbing see here (a commercial site but has lots of good info and pictures on ancient things nevertheless, and you can buy any plumbing requisites while you're there...)