Grant County herald. [volume] (Lancaster, Wis.) 1850-1968, 1904-07-27
uScience
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berzel1um increases the number OF
known elements to about eighty, and
Of radioactive substances to about six.
The Nrays of Blondot seem to give
reactions that some persons can per-
ceive while others cannot. This
brings up again the matter of the diff
ference Of the senses in different indi-
viduals, and suggests that selected
persons may be trained for work re-
quiring acuteness Of vision, others for
keenness of hearing, and SO on.
Hysterical persons imagine dis
eases and deceive doctors in an aston
ishing number Of cases, according to
a French writer In diseases requir-
ing surgical treatment this is serious,
and in one case Of simulated tubercu-
losis peritonitis the patient was oper-
ated on three times, the peritoneum
being found absolutely healthy. In
another case woman Of 26 became
dumb after an accident. Fortunately
no operation was attempted, and she
suddenly recovered her voice during
an X-ray examination.
Of all animals, birds, perhaps, suf-
fer most from severe winter Like
man himself, when the frosts bite too
severely birds flee toward the south,
If they can. In some cases, at least,
the extent OF their migrations appears
to depend upon the severity OF the
season. During the past winter, for
instance, which has been remarkable
for long-continued cold, in Europe as
well as in America, naturalists in CEN
trail Italy were astonished to see the
great White-billed diver, native Of
the subpolar regions, lowering over
Lake Trasimeno and Lake Chiusi, and
two specimens were captured. In De-
cember and January hundreds Of wax
wings, another northern bird, visited
Italy, which seems to have been an
almost unprecedented event.
The cancer studies Of the past year
have disproven the idea that 1t is
purely human disease, due to peculiA
arities of mans living, as it has been
found in all domestic animals and in
other vertebrates including fishes. 1t
can be transmitted by incubation,
though evidently not to animals Of
different species
What is known as the universal
transferable steering propulsor," a
French invention, is light explosion
motor that can be attached in place
Of rudder to any existing boat, with
out boring a hole in the stern post
and can be removed when desired. It
enables anybody to convert roWboat
into 9. gasoline launch for the temper
airy needs Of his days outing. No
rudder is necessary, and as the pro-
peller can be turned completely around
a reverse action is given. A launch
to which a twelve horsepower pro-
pulsor had been attached towed
three hundred-ton canal barge loaded
with $50 tons Of sand.
Because the balance-wheels Of
watches expand and contract with
changes Of temperature, they run
slower or faster, according to circum-
stances. BY making them Of differ
ent kinds Of metal, having different
degrees Of expansion with increase Of
temperature, tie effect Of their changes
on the running Of watches may be al
most entirely eliminated. But in deal
ing with such problem it Is neces-
sary to know the eKpansibility Of the
metal employed A means of meas
uring it is furnished by an instrument
called dilatometer, in which a sys-
tenn Of delicate levers, or a chain OF
gear wheels, magnifes the motion OF
a pointer over a graduated scale nun
dreds Of times. At a meeting Of the
Physical Society in London lately a
was exhibited which had
q magnihcation Of 1000 times, so that
the change in the length Of piece of
steel caused by single degree Of rise
or fall Of temperature was clearly
measured by it.