No. 51917. 



Balance Beam. Centrifugal Force. 



277 



51942. 1:13. 



51943. 1:10. 



51944. 1:11. 



51 946. 1 : 12. 



51 945. 1:10. 



51.944. Apparatus (Schleiermacher's), Figure, for showing that the centrifugal force is 

 inversely proportional to the square of the speed (M. P., 9 th Edn., I, Fig. 135; Fr. phys. 

 Techn. I, 2, Fig. 3267 (I, 446]) 



51.945. Centrifugal Force Apparatus (Bruno's), Figure, for introduction to the relations 

 between Force, Mass and Acceleration (Vierteljahresberichte des Wiener Vereins zur 

 Forderung des physikal. u. chem. Unterrichts, X, 4 (1905); Ztschr. f. d. phys. u. chem. 

 U. 19, 1906, p. 299) ........ 



An accurately measuring apparatus for determining the centrifugal force. 



51.946. Regulator Model (as suggested by Prof. Eugen Meyer), Figure, for proving the 

 surface law, specially suitable for demonstrating the increase of angular velocity 

 with decreasing moment of inertia (Z. d. V. d. I., 1909, p. 1301 et seq., No. 15, Fig. 45 

 on text-sheet 16) 



51.947. Centrifugal Apparatus for 2 samples (M. T., p. 72), with glasses and screw clamps 



Cl. 5735, 3316, 

 642, 



5554, 5050. 



s. d. 



2.15.0 



21. 0.0 



'>. 0.0 

 1. 2.0 



