The St. Mary banner. (Franklin, Parish of St. Mary, La.) 1889-1931, 1903-08-15

HltlTSutlI w ItLloul >tCilit- an
reason to take particular interest in
the grecniSh or brownish black MASSES
that cluster together like grapes. But
some of the most fascinating spccula-
ticEs that have lately been made in
physical laboratories invest pitch
blcnde with tremendous interest. as
the source Of 4 mysterious form Of Ell
ergy that transccnds all our ideas on
the subject, and may possibly point
the way to 4 new source OF power
that will rcvolutioniZe our industries.
The remarkable discovery of Sir
William Crookes whereby the ions"
or atomic carnations from radium,
have been rendered visible, Will renew
aud deepen interest in this mysterious
source Of energy. 1t Is now estIb-
lishcd, according to Professor Lipp-
mann, Of the Sorbonne-who carried
Ms much weight in France as did the
late Professor Rowland in this country
that rndin,n, enc Of the most re-
power Of continually generating heat
without the aid Of any external source
Of energy.
The chief interest of these new
radioactive" clements lies at present
in the rather paradoxica! light that
they throw on the problems Of physi-
cal science. 1t is quite possible that,
like their immediate predecessors, the
Roentgen rays and the Hertz waves,
these Bec1uerel rays may also he
pressed into the service of mankind.
And it is worth while to inquire into
their nature and probable Significance.
Many years ago it was noticed that a
coin or sheet of print. If shut UP IN a
dark box at close quarters, though
not in actual contact with q sheet OF
blank paper. would. after many days.
be found to have impressed on it
faint image Of itself. Some people
attributed these markings to super
human agencies, and called them
spirit photographs" seguin. who hit
on the true explanat ton more by good
luck than good guidance. was laughed
Mt when he suggested the compare
lively prosaic theory that the coin or
the printing ink must be continually
giving off stream Of tiny particles
which in time produced an impress
sion on the paper that they were bonn
harding.
A REMARKABLE DISCOVERY.
For long the question fell into ahcy-
ance, though we now see that it con-
tanned the germs Of very remarkable
discovery. That was reserved for NJ.
Henri Becque-el. In 1896 he was
carrying out some experiments with
the salts Of uranium. which We're
noted for their singular optical prop
critics. They arc chiefly known TO Or
binary people by the beautiful and
golden uranium glass;" which is used
in porcelain painting. AS so often
happens to scientific investigators. NJ.
BecQuerel was rewarded for his labor
by the discovery Of new set of facts
Of which he had 10 suspicion; h'-e
Saul, he went to look for his fathers
asses and found kingdom.
He observed that these uranium
salts emitted an Invisible radiation.
which-like the newly discovered Ro-
entgen rays-trayersed metals and
other bodies impervious to ordinary
light, and left an impression on q
plate. Thus. q crystal
Of any uranium salt was placed inside
q darkeled cardboard box along with
an ordinary Photographic plate in its
closed slide. It was then found that
the rays given out by the crystal,
although invisible to the eye. stamped
On the plate. If an object,
such as copper cross. was interposed
between the crystal and The plate. its
image was photographed in shadow,
very much like the Roentgen "sAia-
graph"
GO ON FOREVER. /