The Palatka news and advertiser. [volume] (Palatka, Fla.) 1908-19??, 1913-10-03
MAGIC OF COLORs
BY 1t We Know of What the Sun
and Stars Are Composed.
SECRETS OF THE UNIVERSE.

How They Were Revealed by the Dis
covery of the Spectrum and the Rea
soning to Which 1t Led-Our Eye
Iashes Are Primitive SPectrosoopes.
The miracle of the spectrOscope is re-
peated before our eyes every day and
every night without our recognizing 1t.
If people were more observant and
more accustomed to think about the
meaning of what they see great dis
coverics would be as plentiful MS dia.
monds in Kimberley pipe.
A man said to me the other day,
"What is all this color that | see when
| squint my eyes and look at an cleo
trio ligbt?"
| replied: ut is the greatest rev.
elnticn that man has ever bad in tile
physical world-it is spectrum analH-
sis Your crowded eyeIashes become
an astronomical instrument and ana-
1--WE. the light for you into its primary
coIors. The multitude of harrow slits
through which the light passes rs son
squint your eyes act like diftraction
grating and change the direction of the
various waves of light in accordance
with their length.
"rhe red waves are long, one thir'
nine-thousandth of an inch in length,
and they keep on without much change
If direction. hut the violet waves atc
short. one tfty-Seven-t houSundth Of
an inch in length, ana they are consid-
erubly turned out Of a straight line,
All the intermediate waves, from or
ange through yellow. green. blue and
indigo. decrease in length and are
more and more turned aside MS they
get shorter The consequence is that
you see through your nearly closed
eyelasheS a band of colOrS, which IS
nothing but the famous spectrum of
the astronomers"
BY the discovery of that spectrum
and the reasoning that it led to we
have found out what the sun and the
stars are made of. Every known ele-
ment of matter, when it is made to
shine, gives out wave lengths peculiar
to Itself. Spectroscopic instruments
more perfect than the eyelaShes reveal
these special waves in the light Of the
sun and the stars and by that revela-
ton enable us to detect the incandes-
cent clouds, composed of the hot va
pors of iron. copper, nickel, platinum.
carbon. calcium. sodium and many
other substances which glow in the
atmosphere of the heavenly bodies.
We find these things in stars so far
away that their light may require
1000 years to come to us, although it
flies with speed Of 10000 miles per
second.
Look around you when you enter a
brilliantly lighted parOr with crystal
chandeliers hanging from the ceiling.
The mysterious spectrum flashes at
you from hundred directions at once.
The glass crystals Of the chandeliers
are also SpectrOScOppS. and they, too,
separate the various colored waves,
though on Il somewhat different prin-
ciple They act not rs diffraction graf
ings, but as prisms, but the effect is
nearly the same. When light goes
through prism the red waves are less
bent out of their course than the or
ange, the orange less than the yellow,
the yellow less than the green, the
green less than the blue, the blue less
than the indigo and the indigo less
than the violet The result is that
what was white light, with all its
waves intermingled, when it entered
the prism, comes out III beautiful
sheaves of color.
A similar effect is produced by the
beveIed edge of mirror or the facets
of a piece of cut glass glittering on
dinner table
The beauty of jewels depends upon
their spectroscopic powers. Every
transparent substance has its own lin
dex of refractiOn," which means its
peculiar power Of turning light waves
aside. The diamond, as the king of
gems. possesses this power in the high
est degree Calling the retroactive in
NeA VI INV lDO, llldl VI Sl'lSS - il'h'
1.51 to III, according to its density.
while that Of the diamond is 2.47
This property alone furnishes al
means Of detecting the genuineness of
a diamond. Taking advantage of its
high retroactive power and shaping its
facets accordingly, the jeweler can
vastly increase the briliancy of a dia-
mond by proper cutting. He can bring
about internal reflections that make
the stone blaze as if its atoms We're all
afire.
The simmer of colors in an opal is
due to the existence of inviSibly mi
mute assures, which split up the light
waves and scatter their hues in deli
cate, intermingled rainbows.
Nature has been doing these things
for thousands of years in plain sight |
before man found out that he could |
use the principle on which she acted |
to uncover the secrets Of the universe. |
Very likely she is giving rs many 9th
or equally valuable hints which we are
still too stupid to understand.-Garrett |
p. Seryiss in Spokane Spokesman-Re-
view.