The Baltimore County union. [volume] (Towsontown, Md.) 1865-1909, 1905-09-09

Internal Pressure of Sun and Planete-A
Perfect 6crew-A New Dental Engine
Keep the Heart Young-Temperature
Made Species-The Body In Water
Sun-Spots and Tides-Animal Speeds-
Promising Potatoes-Portable Gas.
Estimating the physical conditions OF the sun
and the planets, Prof T. ]. J. See has calculated
the Dressures due to gravity, with results that
are certainly striking. At the earth's centre the
pressure is so enormous that figures give only
faint idea of it, and it may be stated to be as
great as that of column of mercury 1888 times
as high as the Eiffel Tower. At the SUMS center
who can conceive Of it?-the probable pres
sure is nearly 212 billion atmospheres To ex-
ert such pressure under terrestrial gravita-
ton, a column of mercury would have to be
high enough to extend beyond the sun.
-
So important is the matter Of standard screw
for gun fittings and other accurate work that
committee Of the British War Office has spent
four years upon the problem. A special lathe
the only one Of its kind in the world-has been
constructed. and the screw at last produced is
regarded as a marvel of scientific accuracy. 1t
is three feet long, with no deviation In any part
Of more than one ten-thousandth part of an inch
ers
The spring-motor of DIR. Bercut, a French sur
geon-dentist, rotates flexible cable 500 to 1.5O0
times per minute, running twelve minutes to an
hour and half according to the work perform
ed, and is intended for dental and bone-cutting
operations, massaging, etc. 1t is wound by the
help Of metallic cord. 1t has proven exceed
inRly useful where electric power is not availa-
BILE an can be taken to patients homes or else
where.
Yaghurt is the name given Xavier Dybovski's
special kind of curdled milk. Itlooks like cream
cheese, but has taste so disagreeabIe that as a
remedy for growing Cd IL is declared 70 - worse
than the disease.
The art of keeping young, we are told by Prof.
GoIdschneider, of Berlin, consists in keeping
sound the blood-vessels. for we are only as old
as the heart and the arteries. Long life is best
ensured by early attention to the heart. though
care begun In old age will often accomplish
much. A great danger lies in abnormal demands
on the organ, and little injuries accumulate, so
that serious harm must come from frequent
repetitions of the use Of heart poison like alco-
hol or tobacco, of eating too much, of too great
muscular effort, or even of mental overwork
Moderation in all things is required. Exercise
should not be violent nor too little in amount
elasticity of the blood-vessels should be promo
ted by frequent exposure of the skin to air and
water and work, food and sleep should be
thoughtfully adjusted. Old people need con-
slant movement, with not too much sleep.
80
The artificial production of new species OF AMI
NAL as well as of plant life opens up startling
possibilities. In his years of experiments Prof.
Standfus of Zurich, has taken 1900 or more or
binary caterpillars in different stages of meta
morphoses, and has exposed them to abnormal
fo,. ofrrro 20 mhov
mostly developed into butterflies of ancient
species. now very rare. while some produced
new and wholly unknown species. One spring
butterfly had summer descendants of different
form and color, but the chrysalis Of this second
form yielded the parents variety at the proper
temperature.
The human body has been lately proven by DIR.
Terrier, French investigator, to be sometimes
heavier and sometimes lighter than pure water,
so that person may float in salt water and sink
in fresh. Abnormal lightness seems to occur in
certain victims of hysteria and nervous disease,
and in witchcraft days the trial by water''
would have convicted such unfortunates as be-
ing in league with the devil
-
The worlds roses are estimated by ]. G. Baker,
f. R. s., to include go primary species. OF these
20 grow native in Europe; 26 in Northern Asia
IS In Western Asia in India; 10 in Western
North America; 6 in Eastern North America.
az
In considering that the planets produce tides
Ia the suns atmosphere, M. Emile Anceaux
Classics such tides as binary, tenary and quater
nary. according to the number of planets acting
together in opposition or conjunction. The ter
nary tide due to the combined action of Jupiter,
q nd tho aarfh 10 N hn ha
important factor in regulating the appearance
of spots. and a curve showing the fluctuations
in the strength of this tide, as calculated from
the planetary positions, agrees fairly well with
the sun-spot curve for the years 1891 to 1905
This ternary tide has period of eleven years,
its variations being due to planetary eccen-
tricities chiefly to those of Jupiter.
"a
The speed table of animals of Mr.. Thomson
Seton. as calculated from actual Things by
stop-watch, credits the greyhound with34 miles
an hour. the race horse with 81, the American
prong horn antelope with 90, the American jack
rabbit with 2S the common fox with rs, the
coyote or foxhound with % and the American
grey wolf with 20. mans best speed is IA
miles an hour. the ordinary runners being IL.
A"A
The potato imported in recent years from
Uruguay into Europe has been regarded as only
fit for feeding to cattle. In his cultivation ex-
periments at Vienna, however, NJ. Labergerie
has succeeded by persistent selection in pro-
ducing several improved varieties and has raised
about forty tons to the acre of potatoes fit for
table use. The plant fiourishes in moist places,
a popularity being the production of both uD-
foreground and aerial tubers.
The new Illuminating gas of Blan, an Angs-
burg chemist, is prepared in a special apparatus
from the residuum of petroleum and heavy
mineral oils. Great economy is claimed, with
ready portability in cylinders and tanks. The
gas gives a brilliant light for streets or public
buildings, and it has the advantage of being not