By Simon Popple, Stefania Zardini Lacedelli, Arran J Rees, Stuart Prior and Maggie Smith Collaborative conversation as a method for exploring multiple perspectives on 'community' and forms of knowledge in the Congruence Engine By Tim Boon Origins and ambitions of the Congruence Engine project By Jörn Wolters AIDS memorials from obituaries to artworks – a photo essay By Brenda Malone Rapid Response Collecting and the Irish Abortion Referendum By Stewart Emmens Wounded – an exhibition out of time By Gemma Almond Why the anonymous and everyday objects are important: using the Science Museum’s collections to re-write the history of vision aids By Miriam Dafydd A museum by the people for the people? A review of St Fagans National Museum of History’s new galleries By Daniel Belteki A model instrument: the making and the unmaking of a model of the Airy Transit Circle By Efram Sera-Shriar Book review: Physics and Psychics: The Occult and the Sciences in Modern Britain, by Richard Noakes By Elizabeth Bruton Technologies of Romance: Valentine from a Telegraph Clerk (m) to a Telegraph Clerk (f): the material culture and standards of early electrical telegraphy