A Study of Splashes

ave yet examined that it might be worth while to look below the general level of the surface. The discovery, however, that when the splash is made by a solid sphere very rem

ratus in the dark room is shown in

-gap F, in front of its concave reflector M, is thrown by means of the condenser lens L taken from an optical lantern. This provides a very uniformly illuminated background against which the splash is viewed by means of the camera C, whose optic axis is horizontal, either a little below the level of the liquid surface or at that level. By having it just at the level of the surface we secure simultaneous pictures of what is going on

The perfectly spherical form presented by the cavity below the surface is very remarkable. In the present case, this spherical cavity when at its deepest, as in Fig. 5, would con

diameter is steadily increasing. The spherical form, however, is still ma

IES

ries Ia viewed b

=

09

2 se

16

3 se

39

55

70

milk that are carried up the inner walls of the crater when a milk-drop falls into water (Series II); in the streaks of lamp-black that are carried there when the drop is of milk, and it may here be mentioned

g.

g.

g.

may afford a clue that will lead to a solution of the very difficult hydr

TNO

blished in a communication to the Mathematical and Physic