Show The Ground Constantly II EE ACTS connected with tb the tides 1 f showing conclusively that the mo me motion I lion tion of ot the waters of ot the earth In Is caused by br the attraction of or the tho moon have been dimly understood for tor centuries For nearly n hundred year rears the actual measurements men of ot the tides titles In tn all Im Important important sections of oC the coast lines of or orthe the world have hon teen been mown known to nod students It has bBB remained for Professor rr of oC the Prussian Institute In to demonstrate that the solid sur surface surface face of or the earth corth Itself yields Just Ilk the oceans to the pull of lC the moon and the sun Aun and ond back bacle of ot that the be final reaction re rea reaction 1 action of all nil the matter In la the tho universe While the motions of or the ocean tie nrc large IAre being measured by b feet Ceet those of ot the solid crust of or the earth are very ery small I measuring only Inches The calculations show that the earth as M u n solid possesses about the tho same else elas elasticity AH as n a ball of ot solid steel lu In times long past when tho the earth was molten through heat bent the sun lIun pulled It out of or shape to three times lIm the extent of ot what occurs now In tho the partially cooled off slate of or the globe Tho The plan planet ft Jupiter is isso 10 so pulled out of ot shape that nt at certain Its still plastic mass masa having about tho the density of ot water assumes an oval shape nod nt at times dimly resembles s u 11 gigantic pear p In the tho heavens be veno or hector lu Iu making mn his bin cal cAI calculations calculations was forced to use uso the most delicate of or pendulums and have bavo won the tho temperature of ot tho the room be he worked In always at nt the same point The curves made mode by the th pendulums were registered on mirrors and then reflected rc so o no to so tobo sobe bo be tremendously magnified In this way WilY waybe the be differences In those these pendulum curves down to points Imperceptible to the hu ho human homan man eye ere wire were w ro Thus magnified the differences caused caned i iby by br the pull of ot the moon and nod sun eun on the th earths solid Mild crust cruet were observed ob erT d and I measured by tho the Prussian scientist This difference IlIa rence Is 7 T Inches Inch I In the Northern and an on equal Quill amount In 10 the half of or the tho globe Iobe Thus there Is nil told a 8 pulling away from Crom each pole according to the position po lUon of ot the tha th sun Iun n a 1 total of ot 16 H This difference Is uniform The Tho giving of ot the tho I rigid structure of or the world equal to that of ot One fine steel la is I not noticeable any mere meree than tho the tides can con he be observed out oat e eat at sea flea There Thero lo Is apparently no connection be between f tween this newly discovered motion of ot 1 the cruet crust of oC the earth CArth and earthquakes it This must he be due to the fact that every atom of oC tho the globe feels fecla this motion and andall andall andall all move moa simultaneously nod and In a II uniform speed and direction H Hence there thero are aro no local disturbance It U la the pull of ot Sha he ho entire universe e although of ot course the tho nearness ot of tho the moon and the enormous mUll mans of ot the sun comparatively speak penk speaking speaking ing make these two belies the strong strom I elements In crust motion on the tho earth Their positions position are nrc the ones which cause caURe tho the greatest r variations In the amount ot or this singular earth movement and nud practically dictate its Ita periods perl and und dl di directions I n |