Los Angeles herald., 1907-12-22
Science and Invention

10 make uldluOuuo dAtihNAoAAJ
Moissau fills an iron receptacle with pure
iron and pure carbon obtained by calcin-
ing sugar, closes it tightly, and rapidly
heats it to the highest temperature attain
able in an electric furnace, bringing 1t to
a. degree of heat at which the furnace
begins to melt and the iron volatilizes IN
clouds.
The dazzling fiery receptacle is then
lifed out and plunged instantly into cola
water, until it's outer surface is cooled
and hardened, thus forming shell of
iron that holds the interior contents with
an infiexible grip. AS the molten interior
matter cools the carbon separates from
the iron solvent in liquid drops, and un-
d4r the almost unimaginable pressure OF
expansion OF the solidifying iron these
lioi,id drops become solid crystals or dia-
monds.
Aluminium conductors have recently
been placed on the market by one OF tiie
well known cable companies. bare aiuili-
num conductors have been used alreaoy
In ,EngIand and largely used in America;
bur insulated aluminium cables have up TO
the present time been practically un-
known. The difficulty of making souno
Joints has prevented a larger use OF aluH-
mum for comercial purposes; put TINS al
ficuItv It is stated, has been overcome
and both mechanical and "sweated Jolits
can be made.
The latest discovery in connection WIN
radiograph Is it's application as a test Oh
death IT appears, according to the exper-
iroants made by NJ Valiant, head OF the
laboratory of photography at the Larpoi-
siere hospital that when the radlographic
nhotograph has been taken of the Vlscera
Of n living subject the subject of the pno-
toeranb gives a confused impression, the
viscera being indicated solely by vague
cloudiness But when the viscera OF tne
corpse is photographed, the impression is
very distinct, each organ being clearly oe-
fined. The reason given for the clouolhess
,e that during life there always is enough
movement during the time OF exposure TO
blur the photograph :.
In the case of death the movement OF
the viscera and the circulation OF the
blood has ceased. Consequently the I'M
preston of the vicsera is quite distinct
Furthermore, it is probable that' VIII
the initial decomposition, sulphurous eii,a-
nations occur which leave the sulphur ue-
nosit on the walls of various organs, thus
IuCli iiiOAS SRe~1~~
Kaisor wilhelm of Germany has con-
ferred on Professor Robert Koch tne
title of excellency in recognition OF ms
services in discovering the origin ana
nroner treatment of the African dis
ease known as sleeping sickness.
Professor Koch's Investigations snoWeu
that the disease was caused by the pite
of a certain fly which feeds on the
blood of reptiles, chiefly crocoolles
He recommends the determination OF
these reptiles, and also the clearing
away of the timber near the forts ana
villages. as the flies cannot endure the
sunlight, but live mostly in the Damp
dark underground.
-
The mileage of the blood circulation
reveals some astounding facts IN our
personal history. Thus it has been cal
culated that, assuming the heart to beat
sixty-nine times minute at ordinary
heart pressure. the blood goes at tne
rate of .OF yards in the minute, or seven
miles per hour 1858 miles per day and
6s20 miles per year. If man of "a years
OF age could have one single blood cor
MUSCLE floating in his blood all his life
II would have travelled in that same time
515O,sOS miles
DR.. Wiley, chief of the bureau of
chemistry at Washington. says that
Judging by appearances alone, foods may
be kept in cold storage for long periods
without losing anything in nutritive val
ue. but between the time they are re-
moved from the ice and the time they
are prepared for the table ptomaine or
alkaioidal bodies may develop which
might make the foods fatal to the human
stomach.
Two young women of st. Louis recently
discovered by accident that 1t was not
necessary to place the lips near the trans
mitter of a telephone to be heard at the
other end of the wire, provided the trans
mitter were placed firmly against the
chest or even other parts OF the body.
The advantages claimed for the new sys-
tenn are that it is germ proof and nom
fatiguing.
SuppIementing his previous gifts OF 81,
200 600 to the Rockefeller Institute for Med
ical Research by another donation Of 81
0OO0OO John d. Rockefeller insures the
permanency and efficient equipment Of the
institution. The entire endowment will
provide yearly income Of something over
100000.