The record-union., 1899-09-25
Science Mention
and Discovery.

anu DlSCUvGIy.
The wife of the fourth Emperor of
China invented silk weaving and was
worshiped in consequence. japanese
bronze work resulted from womans
efforts
People marvel at the mechanism OF
the human body, with it's Az bones
and 60 arteries. But man is simple in
this respect compared with the carp.
That remarkable fish moves no fewer
than 1856 bones and muscles every
time it breathes 1t has $40 veins, to
say nothing of its 80 muscles.
Moths fly against the candle flame
because their eyes can bear only
small amount of light. When, there
fore, they come within the light of a
candle their sight is overpowered and
their vision confused, and as they cam
not distinguish objects they pursue tae
light itself and fly against the flame.
The famous Blue Grotto of Capri has
now rival in the State of Minnesota.
1t occurs in a lake on the shore of
which there is a cavern of white lime
stone flooded with water A swimmer
enters the cave, and. turning to look
outward, sees the most beautiful shades
of green and blue in the water and a
silvery sheen over his submerged limbs.
From 1884 to 1895 women have taken
out 1906 patents. Women have in
vented many important things. The
woman who began by inventing corr
set is now inventing reservoirs and
DAMS Another woman has invented a
lock with 1900 combinations and a
letter box in daily use now for houses
The woman who invented satchel-
bottom paper bags was offered $4,000
for the patent before she could get
away from Washington.
woman in Bradford, England, has
just invented a marvellous machine for
the removal of wool from skins with
the aid Of electricity.
Much difficulty has been experienced
in keeping liquid air from evaporating
while being conveyed from the place of
production to the place where it is pro-
posed to use it. says the New York
Tribune" The fluid is very volatile,
and it readily absorbs heat from the
walls of the vessel which contains it,
and from the surrounding atmosphere.
Prof Dewar devised a receptacle for
storing small quantities which was an
excellent affair, as far as it went. But
an Austrian chemist has gone step
further. The Englishman's plan was
to construct a globular vessel with
double walls that were half an inch or
more apart except at the mouth where
they came together. From the inter-
vening space - which was air-tight =
the air was carefully exhausted. The
vacuum prevented the absorption of
heat from the outside, and acted as an
insulator. Nevertheless, little warmth
was able to penetrate and, in conse-
quence, evaporation would occur. The.
Austrian method resembles this. But
it provides a coating of silver ANAL
gam on the inner surface of the outer
wall. The coating serves as a reflector
for any heat rays that may fall upon
the vessel from the outside, and that
is the only quarter from which they
could come. The Austrian flask differs
from Dewar's in form also. It's shape
is that of two cones placed base to base.
Like the globular holder, it must be
supported on a ring standard.
The discovery of diamonds in Eclogite
Rock at Kimberley suggests a key to
the origin of the gems. The rock ap-
peared to be composed almost exclu-
rsr- SeF OF
culiar light green augite. The rock is
coarsely crystalline. and was once no
doubt like garnet in a molten condi-
ton. the diamond being one of it's orig
inal constituents. This discovery indi-
Gates that the "blue ground" in which
diamonds were found is not their true
birthplace. The powders are often
water-marked and many have reposed
for ages in an ancient gravel at the
very bottom of sedimentary rocks of
the district. Eventually the everything
materials and some of the shattered
rock floor in which the diamonds were
embedded, of which these powders are
only samples, were sent flying by vol
canic explosion It was believed that
in this way the diamond bearing 'blue
ground" was formed.
A remarkable case of salvage is that
of the steamship Milwaukee, which last
autumn went ashore at Port Enrol,
near Peterhead. Finding it impossible
TO float her, as a large part Of her fore
end was inextricably jammed, she was
cut in two with belts of dynamite
cartridges, no less than $40 pounds o.