| Show I 1 DANGER IN HIGH SPEEDS I 1 the force developed by i i loving I 1 danger to drivers drive z of automobiles grows rapidly greater with each new bourst of speed A correspondent of the scientific american develops the theme as follows the danger in all cases increases increase i as the square of tho speed take theroa machines of uio tile I 1 game same make one going five miles an hour one twenty miles an hour and one forty miles an hour the second has bas stored up ud in it it its rapidity of motion sixteen im teen times as much energy as the first and if it leaves the I 1 road and runs into an obstacle 7 such uch I 1 as d a tree a stone a ditch it I 1 will strike with sixteen times as great force in going around ft A curve or turning a corner it Is sixteen times aa likely to upset skid into the ditch or strip a tire when the power Is shut off and the brakes applied it will go sixteen times ag a far before it can he be I 1 brough tto a stop if it comes upon a 8 pedestrian suddenly the latter will have to exert sixteen times as ag much energy to get out of the way in lif time and if 11 struck will be struck with sixteen times the force the third machine will be sixty four times as likely to get got into trouble in going around a curve as the first I 1 I 1 11 an object going tai five e miles an hour Is moving with the same speed as it would have attained in falling ten inches 11 in Ino moving ten miles un an hour itis going as fast as though it had filien fallen three and a half feet twenty cities an hour Is generally considered avery ory conservative speed now twenty t rohe an hour Is 1 the same speed abitt hat would be obtained were the machine to fall thirteen feet through the aar a lr thirty miles an hour ts Is equivalent toa fall of thirty feet forty miles nn an har to a fall of fifty two feet sixty an hour to a fall of feet and miles an hour bour to a fall of feet A person struck by an automobile gong five miles an hour re colvea the same jar as though he lie himself had hai fallen from a height of twenty oab feet or any may from a second story win window doV by ona going forty alles mlles an hour R as thought I 1 had fallen fifty tro feet or say from uie the top of a lofty jaree bujno ua pan a iao aks am hour ail 1 1 i i 4 1 aa thou though gi I 1 laiq fiad fallen from tha the top of the Vas washington hIngton monument |
