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. 131
We have seen that bubbles and drops be-
have in very much the same way. Let us
see if electricity will
produce the same /So W
effect that it did on O; ':
drops. You re- o
member that a piece ’ww
of electrified scaling- ■
wax prevented a H
fountain of water få
from scattering, be- H
cause where two
drops met, instead
of bouncing, they joined together. Now there
are on these two rings bubbles which are just
resting against one another, but not really
touching (Fig. 64). The
instant that I take out the
sealing-wax you see they
join together and become
one (Fig. 65). Two soap-
bubbles, therefore, enable
us to detect electricity,
even when present in minute quantity, just as
two water fountains did.
We can use a pair of bubbles to prove the
Fig- 63-
Fig. 64.