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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by the falling
See Diagram at
the end of the
Book.
THE FORCES WHICH MOULD THEM. 81
one has reached its full size, a neck forms
above it, which is drawn out
drop into a little cylinder.
You will notice that the liquid
of the neck has gathered it-
self into a little drop which
falls away just after the large
drop. The action is now
going on so slowly that you
can follow it. Fig. 35 con-
tains forty-three consecutive
views of the growth and fall of
the drop taken photographic-
ally at intervals of one-twen-
tieth of a second. For the
use to which this figure is to
be put, see page 149. If I
again fill the pipe with water,
and this time draw it rapidly
out of the liquid, I shall leave
behind a cylinder which will
break up into balls, as you
can easily see (Fig. 36). I
should like now to show you,
as I have this apparatus in its
place, that you can blow bubbles of water
F
Fig- 35-