Fort Worth daily gazette. (Fort Worth, Tex.) 1882-1891, 1888-05-28
POPULAR sCIENcE.

POPULAR SCIENCE.
[ A Gathering OF Short Paragraphs TO In
| teress the many,
| DR.. Gatilng has patented . new gun
metal, composed OF steel and aluminium,
strength.
| The National Telephone Company Of
Scotland has several submarine cables of
seven, eight and nine miles in length,
which give perfect satisfaction.
| In the new process of making watch
springs the steel wire is firstltreated to an
oil bath, ana is then brought to the prop.
er degree Of heat by electricity. With the
old method the wire WAS heated first and
thea plunged in oil.
The Paper Trade Journal considers 1t q
mistake to put anything on rubber belts
to cause them to adhere to the pulley. II
anything be used printers ink will do
the least harm. Burnt oil and soap
spread upon the belt will get all the pow
er possible out of it, but the life Of the
belt will be very short.
Scientists say there is no plant that
does not serve IS food for some animal;
but the only article used as food from the
mineral kingdom is coKmon salt.
A writer In the St. Louis Globe Is look
ing hopefully forward to the time when
the walls, ceilings and floors OF our
dwellings will be of msllesble glass as q
period when approximate cleanliness
will be possible.
The "test for sewer gas" going the
rounds OF the press is denounced by the
Popular Science News as unreliable and
only indicative of the presence of sui
phureted hydrogen. There is no definite
test for sewer gas known.
Imitation maple syrup Is made from
glucose by adding an extract Obtained by
soaking hickory, or sometimes maple
bark, in water. The process said to be
patented, impsrts the peculiar taste and
smell OF the real Article.
1t is found that nearly every kind of
glass, especially that containing mangan-
csc, is liable to change Of color by the
scticn Of sunlight, but csn be restored to
| its original color by heat. Stained glass
in windows that has changed tint through
solar action can thus be restored by heat.
At Buda-Pesth 8 well which has been
bored to depth not previously reached
now yields daily 900 gallons of water
at 1873 degrees F. The attempt will be
made to bore until the temperature Of the
water reached shall be 176 degrees.
Whether 1t will be possible in this man
ner to heat dwellings, churches, conser-
vatories, and, indeed, gardens, is still an
open question.
A wire rope half mile long, six and
one fourth inches in circumference, and
weighing seven and one-half tons, has
been manufactured st Gsteshead, En-
gland. There are six strands of nineteen
wires each in it, the breaking strain of
the whole being It's tons, and that of
each wire in the rope 120 tons to the
square inch. This immense rope is to be
used in colliery in North Wales.
The pressure Of sewer gas in room
may oe detected by the following method /:
UDglaZed paper is saturated witl solu =.
tion of acetate Of lead Ia rain water, one
ounce of lead salts being dissolved in
eight ounces Of the liquid. Allow the
paper to partially dry, and then expose it
IN the room which is suspected Of con.
tanning deleterious gas. ANY consider.
sble quantity OF the gas will turn the pa
per black.
Heavy machinery Is now run by artesiah
+, we'll power in many parts of France, and
the experience OF the French shows that
the deeper the well the greater
the p essure and the higher the
temperature. The famous Grenelle well,
sunk to the depth of 1900 feet, and flow
ing daily some 100000 gallons, has q
pressure OF 60 pounds to the square inch,
the water being also so hot that 1t is used
for heating the hospitals.
The Magnet gives the following as an
infallible pressrvativs Of eggs: "Take q
teacupful OF salt, and lime the sizs of an
egg, and pour boiling water on them.
When cold, drain Of the liquor and put
1t on the eggs. II too strong there will
be crust on top; If SO, add more wster.
This is for two gallons Of liquor. There
is no recipe that beats this, and It can be
relied upon. Eggs put down In August
and used in April are just as fresh and
make just ss nice frostings as newly laid
ones.n
Plants are Injured by parasitic fungi il
various ways, according to A. B. Sey-
mour. They are deprived of nourish-
ment; growth ts abnormally accelerated
or retarded, causing distortion; not only
are green parts affected, but roots, stems,
buds, flowers and fruit; leaves and fruit
fall prematurely; decay is produced in
ripe fruits before and sitter removal from
the plant, and valuable plants receive in.
jury from those OF less value by ordinary
Infection.
Poison for some animals is food for
others. 81 gs can eat henbane or hyoc-
ysmue, which is fatal to dogs and most
other animals. Dogs and horses are not
easily poisoned with arsenic. Goats eat
water henlock with IMMUNITY; pheasants,
stramonium; rabbits, belladenns; and
morphia is said to be inocuous to
pigeons. There is some truth in the old
saying that "whst Is one man's NEST is
another mans poison" This is due to
habits and idiosyncrasies.
The attention ct the French Academy
Of Sciences has been drawn by M. Faye,
the emin INT astronomer, to the apparent
geological law that the cooling of the ter
res,rial crust goes on more rapidly under
the sea than with land surface. From
tcis srguesithst the crust must thicken
under oceans st o more rapid rate, SO as
to give rise to swelling up and distor-
tion Of the thinner portions Of the crust;
In other words. to the formation of mnun-