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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166
SOAP-BUBBLES, AND
In pushing a bubble
through a ring smaller than £
itself, by means of a flat
film on another ring, it is
important that the bubble
should not be too large; but &
a larger bubble can be ■
pushed through than would k,
be expected. It is not so S’,
easy to push it up as down S
because of the heavy drop of
liquid, which it is difficult
to completely drain away.
To blow one bubble inside
another, the first, as large as
an average orange, should be
blown on the lower side of
a horizontal ring. A light
Fig- 67.
wire ring should then be hung on to this bubble
to slightly pull it out of shape. For this pur-
pose thin aluminium rings are hardly heavy-
enough, and so either a heavier metal should