Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1903-11-06
SCIENTIFIC MISCELLANY

Mapping the magnetic fields Of force by
sprlnkllne iron filings over "a sheet OF
paper resting on "A magnet III "A familiar
experiment, IN studying the diffusion Of
liquids, NJ. Stekhane Leduc has made
photographs of the phenomena and the
pictures reveal fields Of force so strik-
ingly like thos of the magnet as to sug-
goSt that the manifestations must be re-
lated drop OF aqueous solution In dis
titled water radiates molecules In many
directions. this being "A positive pole OF
diffusion. A drop OF water IN an aqueous
solution, on the contrary. gives mega
tive pole of diffusion; and blpolar fields
OF force, OF the same or opposite names
may be produced with two drops Of water
or solution about an inch apart. When
similar poles of diffusion produce spheres
that meet they form pOlyhedra, giving a
kind Of artificial cell,
The finding In a meteorite OF the only
known perfect diamond II held by f.. NJ
Souvlellc NJ sustaining his theory that all
diamonds are Of meteQrlC origin. The car
bon must first have been intensely heated
I'm the absence Of oxygen, ana Il must
then have been submitted TO great pres
sure through the sudden external cooling
Of the matriX rock. The necessary condi-
lions cannot have existed on the earth,
Some beautiful experiments In the pro-
duction OF mercury bubbles have been de-
scrbed by Henry ii. Dixon OF Dublin The
mercury is covered by water to the depth
OF about three-fourths OF an inch, and the
bubbles are produced by boiling the water
or by forcing u current OF air or water un-
der the mercury through a small tube.
The bubbles rise to the top of the water,
linger a moment then slowly sink or
are whlrled around the vessel,
A French milking machine consists OF
concal brass receptacle, with sucker
terminated rubber tubes and an electric
motor for initiating the suction OF the
calf.
Not least among the terrors Of war Is
the spread OF disease 10 new places The
new parasitic worm discovered by Prot
}. ID. Whites, an English dental lnstruc.
tor seems 10 have been brought to Eng
land by soldiers returning from South
Africa, aud to have been distributed 10
COWS through forage plants from a sew
age farm, the milk from these cows car.
rying Infection 20 human victims The
parasite which has been named Filarien-
sis whittier, was first detected IN a
young woman dental patient who had ac-
CURED her malady through fondling and
kissing "a pct dog Since then 1t has been
found IN the blood VI many persons, It's
presence being indicated by troublesome
itching Of the skin Of the upper and lower
eNtrcmiues and the chest.
a novel German speed-ndicntor for ma
chine tools Is simply "a small electric gem
orator and q yoltmetcr, the generator be-
ing driven by the shaft whose speed is tn
be- measured The voltage varies with the
speed or the driving machines. and the
dial Of The volunteer can be marked on
IN revolutions per minute Not least
among tho advantages W. the fact that
the indicators may be placed AT a distance
or In any position most convenient TO the
managers
Much complaint IL made on account Of
the nois of the Berlin elevated electric
railway. which was opened last year The
tlrat attempt To lessen the sound consisted
IN placing three layers 0f felt between
the rails ana the wooden cross-tlca, but
this, while giving Improvement was In
sufficient Another partially successful
remedy was the substitution " sand-nlled
hollow glrders for the wooden sleepers
The rails were then laid on lead cushioned
slCtpers without Cruss-ties, the slecpers
running lengthwise. and finally the car.
wheels have been tined with wood Tests
are sun IN. progress. the ideal remedy be-
Ing YET unknown.