On the 24 October 2013 in the Rock Room at UCL, D. Graham Burnett and Sal Randolph led the 100 Hours team through an unusually active process of engagement with objects. Graham is Professor of History and History of Science at Princeton University, working on cartography, oceanography, exploration; natural history and environmental science; science, technology, and the Arts. Graham is also an editor of the Cabinet magazine and has for many years engaged with a collaborative and performative art practice focused on giving artworks and artefacts sustained attention. It is through this latter activity that Graham and Sal Randolph came to work together. Sal is an artist and writer whose work explores gift economies, social interactions, public spaces and publishing. See the researchers’ responses to this session here!