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. II?
fection of the form in a figure, but fortunately
this is an experiment which any one can easily
perform.
Then again, if a wire frame is made in the
shape of the edges of any of the regular
geometrical solids, very beautiful figures will
Fig- Jo-
be found upon them after they have Deen
dipped in soap-water. In the case of the
triangular prism these surfaces are all flat, and
at the edges where these planes meet one
another there are always three meeting each
other at equal angles (Fig. 50). This, owing
to the fact that the frame is three-sided, is