Show objections TO THE METRIC SYSTEM from tho electrical review the great difficulty that has beai encountered on the of europa in working with the metric system is tha seemingly hopeless task of standardizing ard izing screw threads etc under it whether it be tho natural of mankind to count by tena or to continually multiply and divide by two it is certainly very difficult even to suggest any satisfactory subdivision of abo centimeter for threads another important point is that whitworth thread in inch sizes is standardized all over the world that innumerable screws and bolts and taps and dies arc in existence v alth such it breads and that practically ail the machinery that is now at work in the world is dependent for repairs upon eabe in getting standard sizes of goods to change them would involve mechanical confusion for a generation and even today in germany notably where machinery is mado on the marc system the screw heads are cut 0 o whitworth inch gauges the difficulty of adopting a celli grade thermometer scale is not a difficulty at all but involves only the awkwardness due to change I 1 gives satisfaction in general use in france it is strange that no sac boua effort has been made to fix upon a standard of length that shall be really what the meter was intended to be fixed and immutable and rediscover able if lost such a standard is faunl in the wave length of light this cin now bo measured extreme accuracy and it could be made the basis of practical stan darda approximating either the meter or the foot soni suggestion or this eort has been iliade we believe by professor Ml chelson but nothing practical has been done 0 oward adopting this most scientific munir of length except in refined physical research work |