Centre of Gravity, Equilibrium, Arbor Wheel, Balance Beam. 



275 



51 932. 1:10. 



51 935. 1 : 8. 



51,929. Board with 3 Prismatic Blocks of various heights for stability experiments (Kleiber, 



Lehrb. d. Phys., Fig. 37) 



51,930. Stability Parallelepiped (Lichtenecker's), Figure, consisting of a prism with variable 



angle of inclination, with centre of gravity plummet 



51.931. Stability Prism (Friedr. C. G. Miiller's), with adjustable centre of gravity (M. T., Fig. 29) 



51.932. Lever Stand (Friedr. C. G. Miiller's), with auxiliaries for explaining the rod-shaped 

 lever, the disc-shaped lever, the centre of gravity of the lever balance and the pointer 

 balance (M. T., Figs. 20, 21, 23, 27, 30) 



1 Stand with 2 rod -shape levers, 1 disc lever, 1 balance beam with pointer, scale, 2 balance 

 pans and 2 rider weights. 



Hooked Weights: see No. 51,828. 



51.933. Arbor Wheel (Friedr. C. G. Miiller's), suitable for previous lever stand (M. T., p. 42) 



51.934. Model of a Balance Beam (Weinhold's) (W. D., Figs. 7881 [7174]), with iron 



pillar, beam of ebony, 2 double hooks of 1 and 5 grams and a small rider. 





s. d. 

 0. 9.0 



0.18.0 

 1. 4.0 



3.10.0 



0. 3.0 



1. 4.0 



1.10.0 



5 1 ,935. --idem, Figure, with pointer and scale (W. u. E. phys. Prakt., Fig. 27) . 



For Finished Balances ready for Demonstration Purposes (also suitable for demonstrating the olfl .^^ 



balance beam), Hydrostatic, Chemico-technical Balances, Sets of Weights, etc., see pp. 231 244. 4991,595! 18* 



