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
Ri — The Distance Walked in an Hour An Article by Craig Mod craigmod.com A ri is a unit of measure, it’s about how far a person can walk in an hour at a reasonable pace. It clocks out at roughly 3.93 kilometers. Remnants of the ri system are scattered along the old roads of Japan. During the Edo period, ri were marked recurrently by hulking earthen mounds that flanked the road — ichi-ri zuka, “one-ri mounds.” There are only a handful of “originals” left. When you pass one with an old cypress or oak growing from its center it becomes a tiny moment of celebration. walkingscale