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. $$
trying, and then see if we can tell why. You
now see two pipes each with a tap. These are
joined together by a third pipe in which there
is a third tap. I will first blow one bubble
and shut it off with the tap i (Fig. 22), and
Fig. 22.
then the other, and shut it off with the tap 2.
They are now nearly equal in size, but the air
cannot yet pass from one to the other because
the tap 3 is turned off. Now if the pressure
in the largest one is greatest it will blow
air into the other when I open this tap,