THE NUT AND BOLTS OF MODERN LIFE

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    "The humble screw thread may simply be an inclined plane wrapped around a cylinder, but without it, metaphorically and literally, the wheels would come off the modern world.  Nature barely uses the concept, but for mankind it holds false teeth in place, focuses microscopes, and fastens hatches onto spacecraft.  Screw threads also provide the precision movement that allows the automated manufacture of just about every piece of technology we take for granted. ...

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kannan narayanan

blogs from Tiruchirappalli