SERIES XVI
Spheres dusted at one side.
| 1 | 2 |
| 3 |
We observe that in Figs. 1 and 2 (as also in Fig. 6 of [page 91]) the continuous film or shell of liquid no longer reaches the outermost droplets that once have been at its edge. It must evidently have been pulled in by its own surface-tension, which of course will cease to exercise any inward pull on a drop that has once separated.
The influence of dust, thus incontestably proved, seems also to afford a satisfactory explanation of—
(1) The effect of a flame.
(2) The effect of heating.
(3) The variable and uncertain effects of electrification.