October 2012 IssueGearHow to build a Rubens’ tubeBusinessHow to build a handlebar bike-hangerBusinessAvalanche! How lasers and wind tunnels make mountains saferScienceAll-round performerGearHow to make your own wind tunnelBusinessCrazy for kittehs: the quest to find the purring heart of cat videosCulturePhotographer uses analogue techniques to create stunning geometric effectsScienceCognitive neuroscientist seeks to understand teenage brains
