The Evolution of Useful Things A Book by Henry Petroski Here, then, is the central idea: the form of made things is always subject to change in response to their real or perceived shortcomings, their failures to function properly. This principle governs all invention, innovation, ingenuity. Spike and sponShaped and reshapedForm follows failureTheir wrongness is somehow more immediateA small corner of the world of things+23 More The evolution of devices formfunctioninventionprogressfailure
An edge is an interface An edge is an interface between two mediums. Edges are places of varied ecology. There is hardly a sustainable traditional human settlement that is not sited on those critical junctions of two natural economies. Successful and permanent settlements have always been able to draw from the resources of at least two environments. Bill Mollison, Introduction to Permaculture As a kind of gateway edgesmedia