Soap Bubbles
and the Forces which Mould Them
Forfatter: F. R. S., A. R. S. M., C. V. Boys
År: 1890
Serie: Romance of Science Series
Sted: London
Sider: 178
UDK: 532
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THE FORCES WHICH MOULD THEM. 37
we have alcohol on one side pulling in, while
we have water on the other side pulling out,
and you see the result. The water is victori-
ous ; it rushes away in all directions, carrying a
quantity of the alcohol away with it, and leaves
the bottom of the dish dry (Fig. 13).
F>g- 13-
This difference in the strength of the skin
of alcohol and of water, or of water containing
much or little alcohol, gives rise to a curious
motion which you may see on the side of a
wine-glass in which there is some fairly strong
wine, such as port. The liquid is observed to