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THE ROYAL SOCIETY OF CANADA 



The diameter of the balancing cyhnder must always be less than 

 that of the fixed cylinder in order to get stability. 



Results.- — (These were taken with about the same degree of 

 precaution that an ordinary student would take in class.) 



I. — ^Gl.vss Rods axd Tubes 



(^) A set of six inch rods and tubes were first tried. 

 Diameter of Fixed glass cylinder 1 . 29 cms. 



Mean 1 . 47 



(B) Next a set of three inch glass rods and tubes was tried. 



Diameter of Fixed Glass Cylinder 1.29 cms. (Same cylinder as before). 



Mean .38 



Note 



-Since T = 2Tr 



r-(A-B) 



V g(A-B) 



6g 



Therefore 7'" {A —B) is proportional to /- 



