We speak to four students who took part in a climbing expedition in Yosemite National Park, California with support from the College Exploration Board. (Extract 2 of 4 from the Imperial College Podcast 11 December 2013)

Kerry Noble speaks to Dr Duncan Sivell, who explains what dance flies have in common with ceilidh dancers.

Medical student Vinesh Patel tells us why he has established a Wikipedia Society at Imperial, and advises on how best to use the gargantuan internet resource.