336 



Equilibrium, Motion and Molecular Effects of Liquids. 



X" :.2) 



52 456. 1 : 6. 



52455. 1:5. 



52 458. 1 : 6. 



52 459. 1 : 12. 



s. ,1. 



52.455. Apparatus for demonstrating the Distribution of Pressure in Long Tubes, Figure o. Hi. o 



Two communicating glass cylinders, qne being closed by a rubber membrane and the other by a ' 

 rubber plug, have each a closed pressure gauge with rubber tubing (Piezometer). When pressure is 

 applied to the membrane the coloured liquids in the two gauges rise to the same height. 



52.456. Wave Tube (Maxwell's), Figure, for explaining the formation of the residuum, 

 slow equalisation of pressure; can be used as an analogue for the charge and discharge 



of a condenser (Fr. phys. Teehn. I, 2, Fig. 2392) Id. o 



52.457. Tube with closed Pressure Gauges, for pressure distribution, as suggested by Friedr. 

 ('. (I. Miiller (M. T., Fig. 57) ' . . . . 



I. 



."ii',-158. Hydrostatic Apparatus (I'ecknager.s), modified by Friedr. ('. (!. Miiller, Figure, 

 for showing the distribution of pressure in liquids and the regularity of aetion on the 

 area of the walls of vessels (Pascal's Law); the apparatus can be used also as a demon- 

 stration model for the Hydraulic Press (Ztschr. f. d. phys. u. chem. U. 7, 1893/94, p. 7; 

 M. T., Fig. 58) ' 3. ti. (I 



.':.'. l."i!>. Hydraulic Bellows, Figu re (W. 1)., p. 148 [127]), comprising rubber cushion with 



hose, funnel tube and supporting board, without weight and stand l.ll'. u 



A few litres (if water are tir>t poured into the tube, and the supporting board and a li."> ~>0 kg 

 weight are placed on the cushion, and the result shows that the weight i- raised by slowly filling with 

 water. 



C I. 3324, 502:!, 

 3325, 3839. 



