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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120
SOAP-BUBBLES, AND
gas like air could not pass through to the
other side. Nevertheless it is a fact that gases
can slowly get through to the other side, and in
the case of certain vapours the process is far
more rapid than any one would think possible.
Ether produces a vapour which is very heavy,
Fig. st-
and which also burns very easily. This vapour
can get to the other side of a bubble almost
at once. I shall pour a little ether upon blot-
ting-paper in this bell jar, and fill the jar with
its heavy vapour. You can see that the jar
is filled with something, not by looking at it,
for it appears empty, but by looking at its