Didn't know that about the torches; fortunately, as an inveterate green man spotter, I never go anywhere without my trusty Maglite which came in very handy during my last visit. The museum website is a browser's delight: http://www.prm.ox.ac.uk/

The Petrie Museum's likewise: http://www.petrie.ucl.ac.uk/william_flanders_petrie.php

And I can see the Museum of Jurassic Technology website is going to keep me happy for a few months: http://www.mjt.org/