Introduction
This is the start of an online version of the Departments lecture demonstrations. The classification scheme used is one developed by PIRA (the Physics Instructional Resource Association). Details of this scheme can be found in the demonstration bibliography. The PIRA200 label is referring to a list of demonstrations which should be considered fundamental to any demonstration collection. This is a preliminary list adopted by PIRA at the 1993 Summer Meeting.
This is very much a work in progress, so please excuse any errors and omissions. If you have any ideas, comments or demonstration suggestions please email me.