Wauwatosa news. [volume] (Wauwatosa, Wis.) 1900-1948, 1908-11-13
BITS OF SCIENCE.


noted English scientist, by 1881 the
worlds supply of wheat will be unequal
to the increase in population.
More than 100000 persons, living in
100 cities. obtain water for domestic
and Industrial pun poses from the Great
Lakes.
By winding hose used on rock drills
with MARINE it will both protect 1t from
wear and tear by the rocks and strength
en- it.
A French engineer has invented a
sci Of any size may be turned in its own
length.
An Enghshman has patented device
to make life in submarines safer. Should
a boat fail to ascend, q platform may be
released which will rise TO the top of the
water, carrying three tubes for convey
ing air and liquid nourishment to the
imprisoned.
The United States of Columbia has
but one iron foundry. 1t is at Bogota
and is used to smelt native ores for cast
ing purposes.
Montana during 1907 produced sap
phires worth $229,S00.
OF the 100000 families in France.
nearly 100000 are childless.
The highest suicide rate of any nation
is that of Denmark
The average Angora goat produces
from six to eight pounds of mohair
year.
Tin foil is made by filling tin plates
with molten lead and after cooling, roll
ing them to the thinness required.
Electric headlights on locomotives of
all through trains are required by law
recently passed by the Georgia Legs
lature.
The worlds coal production. both an
thracite and bituminous, in 1907 was but
little short of half billion short tons.
In the recent French army maneuvers
wireless telegraph station in balloon
successfully intercepted messages sent
from Berlin to vessels at sea.
The United States marketed clay
worth S15S, 942, 1863 in 1907, according to
the geological survey. More than three
fourths of it was used, for brick or tile;
Grlndstones and pulpstones produced
in the United States in 1907 were worth
SS96,022, the best record in the history
of the industry. Ohio produced nearly
50 per cent. of the total.
A recently invented thief-catcher for
stores consists of a system of levers
which will close doors from behind a
counter on pressing a pedal and at the
same time ring an alarm outside the
building.
A British electrical expert predicts
that within few years a person will be
able to enjoy grand opera by wireless
biography anywhere within ten miles of
where the music is being produced at
but slight expense.
The greatest authentic height attained
by man is $500 feet; kites have been
flown to a height of 81, 100 feet, and an
unnamed balloon, carrying recording in
struments, has risen $500 feet, little
| over sixteen miles.
The 21-year-old daughter of Thomas 4.
I 1,Dv ~
road map on which a movable pointer i'll
dicates the position of an automobile to
which it is attached The machine may
be lighted by electricity at night.
The experiment to eliminate noise on
| Chicagos elevated railways by using
| gravel as ballast has been abandoned.
| Not only did it Fail in its purpose, but
| the gravel held water to such an extent
as to injure the steel structure.
A patent has been granted on a fan.
| the propeller-like blade of which are
driven through gear wheels by a lever
| operated by one finger of the person hold
| ing it. The inventor claims it obviates
| the effort needed for Using the ordinary
| fan.
The latest application of the coin-in-
the-slot principle is to typewriters, an in
yentor having devised a machine by
which on the insertion of coin, the
patron of a hotel or railroad car gets the
use of a typewriter for a given length
| of time.
| Bromine, useful in medicine, photog-
| raphy, the manufacture of dyes and III
| certain metallurgical operations, is pro
| duced commercially in but four states of
| this country, Michigan, Ohio, Pennsyl.
vania and West Virginia. Last years
| output was 1,379,496 pounds.
| A Vienna scientist has demonstrated
| that the ancestor of the fox was an
animal clothed with horny scales, like
| the scaly ant-eater of today.
| The United States, including Alaska
produced but 81 tons of tin in 1907
| about one-twentieth of / per cent. of the
! total output of the world.
Water-filled jackets are worn by fire
| men of Berlin as n protection against
! heat.
A New York man has been granted a
| patent on Il combination life preseryel
and camp stool.
| Cossack soldiers are drilled in building
bridges of their lances, with cooking ket
| ties as floats.
BY new printing telegraph machine
from as TO 100 messages an hour can bt
| handled by person with no knowledge
| of telegraphy.
Exhaustive tests have proved the new
torpedo nets of the navy able to with.
| stand the attacks of torpedoes fired a,
| the highest speed of which any in the
4
The human sense cannot realize diff
ferences in temperature beyond one-fiftl
| of a degree, while thermometers are
made sufficiently delicate to distinguish
| a millionth of a degree.
In 1890 the value of all farm prod
| ucts in the United States was $2,466.
| 100000; in 1900, $4,T17 10000 and. il
| 1906. $7,000,0O0000, gain in sixteen
years of nearly 1S5 per cent.
| The federal coast and geodetic sur,
vey has just finished the relocation OF
| sixty-one stations on the Pacific coast
which were moved by the earthquake
that devastated San Francisco in 1906
The first free-for-all race for airships
| irrespective of class or method of propul
sion or elevation, will be held over .
fve-mile course at New York on the aft
erncon of election day.
4 new seal rookery has been discov.
cred on heretofore uncharted island t.
the northward of TIE Russian port OF
Sakalien. The finder secured a fortune
in skins before he told his secret.
According TO the federal fish commits
sion, which has been making tests the
| meat If the small SbarE cou,,,av,i,