Gilley, Frank M · Boston, Allyn & Bacon · leaf 179
til the fluttering action of the bell shows that contact is j ust madebetween the end of the mi-crometer screw and the tack.Read the micrometer, and callthis the reading with no load.Put a 100-g. load, W, on therod, and read the micrometer.Turn the micrometer screwback and remove the load.Fig. 167.… … ELASTICITY. 169 always remembering first to turn the micrometer screw back farenough so that the tack will not touch it when the load is removed.If a square metal rod is substituted for wood, the tack becomesunnecessary, and V-shaped supports of metal are used, the bindingpost being on one of…
Physics
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