Barbour County index. [volume] (Medicine Lodge, Kan.) 1880-current, 1883-04-27
Soap Bubbles.

How many Of our boys ana girls
know what is meant byTtsoa seence of
anythinge The word science means
true knowledge, and to know truly, per-
fectiy about an object 1--WE masttknow1 of
what 1t is made or what causes it, and
what properties it has, such rs, form,
color, weight. va t'i''''
How shall we make our soap Fhsb5ie?
OF soap and wafer, You viii. all say.
Only soap and waterP One sucG bubble
will be gone before you can send another
TO catch It,. IIn) my childhood si8ys |
thought it real fun to see them, burst,
but more fun to make them last Il long
time rtss ~. ~ Il q
Now the secret lies .itiieetting O. istst,the
r MSEts b miftqF nnl l pS into
CASTLE soap, one pint OF asafcfi SAa
three-qqarteESa Of, a pint Of ,plIre glyc-
crime. This is Plateaus so(uti6n, and
from it he makes bubbles tiiat asenxefy.9
very beautiful. though, being blind, ,he
can see them oniy with the, eses q. his
mind. --- ''A'' ~
~ We can use IN the blowing anpriinarv
tobacco pipe>or glass tube. \ Ii ishard
to make very large bubbles with the
mouth, an sonetiihesia pair of belldks
is used. We cannot examine .oa,E bulb.
bic while it is dancing over the table
or floating in the air. so weiieed n sap
port, whichi%eo will make of:al wire
ring fastened horizontally head
of large nail. The fiaif 1sfio7rid first
be driver into a small block ,sofl wood.
just far enough to keep il .firu-. Let the
ring be smeared with paraffine; il pre-
vents the wire from cutting iiitbR the
bubble A glass shade may be- placed
over the bubbles. and niix support, thus
protects it from draughts of air..n,....f-
Iet,u see, now, What our. bubble con
slsts of. A portion of air enclosed BY n
film something very thinAwfieN'sis
made of soap and water. So W eolmve
the three: forms of matter-the solid.
liquid and gaseous. o. -" q
When blown from the month the air
inside of the bubble il warmer and
lighter than the outside mir. and our
bubble viii, rfse.. When filled from BEL
lows, the air "a colder and heavier,
causing the bubble TO fall This risihS
and falling is due to pressure of the air
which, some of tho boys, win tell us, is
equal 70 fifteen pounds to cyery sauare
inch.
Different airs or gases have different
weights! This may be ippebtily shown
by putting intOa vesssi of GansIkihd a
few pieces of chalk. Pour over them u
little vinegar. A bubhling Will BEGIN
and a gas set free which we c;lll jc-af.
bonic acid gas. Itspresdnce NAV be
shown by putting in a lighted match.
which this gas viii at once put iout.
Fill bubble with air; let II fallIupon
the acid gas. 1t will remain suppOpttd
seemingly upon nothing, for this air
is invisible-as long rs any of The gas is
left. If YOU could fill a bubble with hys
drogen it would bound upwards at O.
great rate, for that gas is the lightcSt
known. = ' 10y IL aief. slH
Let us now look at the colofsl'inI our
bubble. How beautiful they are. dane
ing and flashing so fast-changingFso
rapidly we can not begin fopolat them.
But we know that white light, that is,
sunlight, is composed Of seven col6rs..
They can all be seen in the ratinbo1l.-
Let beam of light fall upon the t,ub-
BILE. Part of the light, passes Fight
through or is absorbed, and part is Ut
once thrown hack or reflected .tThb
portion of the film that absorbs ALI EN-
colors and reflects or throws, back Only
the blue will appear blue. and so on for
all the Others. Aid So the thicRii9A Of
the film changes the absorption atidfftH
ilection of the light changes, s6Tt is'tfat
our bubble sparkles with all The beadtiftil
and delicate tints of the rainbow ~
Adding more glyrerine will make the
'coloring evennhOre brillani., Indeed,
our bubbles can be made perfectly gor-
geouS. @5Bupttst Wcektv-----