St. Landry democrat. (Opelousas, La.) 1878-1894, 1892-02-20
POPULAR SCIENCE.
Sleep is the greatest fat inducer.

The moon is said to move 1888 feet
per second.
For every foot of stature man should
weigh twenty-six pounds.
It IS said that the best walking pace is
seventytive STEPS per minute.
Doctors say a healthy adult should eat
at least ten ounces of meat each day.
A Rhode Island man has invented
device for measuring cloth on the loom.
The average height of clouds above
the earth is between one and two miles.
A Canadian has invented centrifugal
extractor for honey. 1t leaves the comb
clean and intact.
Four pounds of gold have been col
lected from the SCOT of the chimney of
the Royal Mint in Berlin, Germany.
A French inventor named Picard has
achieved successful results with slmulta-
neous telephony and telegraphy along
the same wire.
Edison is at work on monograph for
the use of blind children, that Shall do
away with the raised letter books hlther-
to used in their instruction.
Electric headlights of about $500 can
die power are now in general use on tne
railroads in Indiana. They are very fay
orably spoken Of by engineers.
Crude petroleum has been tried as fuel
in brick manufacture, showing q saving
of fully one-half the price of coal fuel,
to say nothing of the saving Of labor IN
firing.
A new lead-headed nail for putting on
corrugated roof has made its appear
ance in London markets. The head
tiattens under the blow of the hammer
and thus prevents leaking.
The alcohol process Of obtaining sugar
from cane syrup has revoIutionized sugar
making from that source. The process
is very simple, and it is said that but one
per cent. of the alcohol used is lost.
A new application of electric motors is
for supplying by means of fans draught
for chlmney5 where very high buildings
are built adjoining low ones. Such an
arrangement is in successful operation
in Boston.
A good cement to fasten glass letters
upon glass windows, etc., consists OF one
part India rubber, three parts mastlc, land
fifty parts chloroform. Let the mixture
stand several days in a closed vessel and
apply rapidly.
An oilless spindle bearing has been
invented by Massachusetts, man. 1t is
made of wood chemically treated, and it
is said that in a test one spindle ran sew
enty-six days of ten hours each, without
heating or perceptible wear.
A man in New Hampshire has invent
ed device for giving a smooth surface
to bobbins. 1t consists Of a facing or
tube which is drawn over the bobbin,
thus making it practically indestructible.
The facing, it is said. can be attached to
any bobbin.
The heat. conducting qualities of the
metals range as follows: Silver, lou;
copper, 1880; gold, $3.50; annealed
aluminium, 1887; unanuealed aluminium,
81. So; tin, 1850; iron, 1l.60; steel,
II. so; lead, $50; platinum, $50; bis
muth, $50.
Astronomers recently observed, by
photography, solar disturbance lasting
fifteen minutes, in which vapors assembled
to distance of 50, 900 miles. The com
pass needle was sen5ibly affected, and the
effect was to have been caused by
meteor striking the sun.
The hot-water boxes are to be taken
out of the French railway carriages, aud
warmth is to come from boxes filled with
acetate of soda. The boxes are tiled
with soda in solid state, which IS llqui-
fed by being plunged into hot water.
As it solidiies, which takes five or SIX
hours, it steadily gives out heat.
On the estate OF the Marquis de La
Laguna, i'll Spain, water-wheel OF
twenty horse power runs a dynamo.
Flowing by electricity has been proposed,
and the current is to be transmitted to a
field three miles distant, where motor
on pillow is to be operated. The cable
to be attached to the plow is to be wound
ON = reel and drawn over the field.