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. 65
symmetrical about an axis, except a flat sur-
face, is called a catenoid, because it is like a
chain, as you will see directly, and, as you
know, catena is the Latin for a chain. I shall
now hang a chain in a loop from a level stick,
and throw a strong light upon it, so that you
can see it well (Fig. 28). This is exactly the
Fig. 28.
same shape as the side of a bubble drawn
out between two rings, and open at the end
to the air.1
Let us now take two rings, and having placed
a bubble between them, gradually alter the
pressure. You can tell what the pressure is
If the reader finds these geometrical relations too
difficult to follow, he or she should skip the next pages,
and go on again at “We have found . . p. 77.
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