Telegram-herald., 1890-04-02
CONDENSED SCIENCE.


sufficient 70 send message over an At
iantic cable.
Two FRENCH dentists extract teeth
without pain by spraying the external
ear with ether.
PROF. LANGLEY, as result OF expert
ments as to moon temperatures, taken
during an eclipse, concludes that tho
mean temperature OF sun-lit lunar soil
is not greatly above zero c.
EXPERIMENTS have been made in Ger
many with torpedoes made OF paper.
loaded with charge OF twenty-five
pounds OF dynamite and fired by elec-
tricity. Very satisfactory results arc
said 20 have been obtained.
THE progress of stellar photography
is we'll exemplifed in the case Of the
inner satellites of Uranus. which, al
though they are among the most diff
cult OF all, have, during the past year,
been successfully photographed
Is a startling paper to the Vienna
Academy Of Science, Theodor Gross has
doubted that sulphur is an element, be-
leving, for reasons soon TO be given,
that IL is q compound OF carbon with
some other as yet undetermined ele-
mentary substance.
A CORRESPONDENT OF the British Jour
nal Of Photography. having found, by a
twenty-five minutes exposure in photo
graphing tho moon, that the image
travelled nearly the length of his plate
during the exposure, suggests that pho
tography might be made the means OF
measuring the movement OF the heaven
ly bodies.
The use Of nitro-glycerine In cases Of
emergency instead OF alcohol is recon-
mended by an English physician. A
drop on the tongue rouses a fainting
man. and it may restore life in the case
OF apparent death, IS from drowning. II
has quickly relieved headache, heart
pains and asthma, and strengthened
weak pulse in fevors.
MoDERN chemistry shows that the
medical lore Of the ancient herbslists
had a much sounder basis than had
been imagined. In 1897 water crosses
were recommended for the cure Of
scurvy and scrofuls. Chemists now say
that the oress contains sulphur. phos-
phorus, iodine and iron-substances
that are known 20 be actual antidotes 10
scrofulS
PRor PoE, OF Bridgeport, Conn, has
drowned and rssuscitatsd q pet rabbit
eleven times. and sufocated il also with
the fumes OF burning charcoal, aud
restored It 70 life. The professor uses
a pair OF artificial lungs. Artificial
respiratious produce muscular contrac-
ton aud expansion, forcing oxygen into
the lungs snd drawing out the deadly
gases
EXPERIMENTS have demonstrated that
tho relation between the velocity OF .
proieotile and the resistance offered By
the air 20 is motion differs materially
from Nswton's theory that the resist
anos IL proportional 70 tho square Of
the velocity. For velocities which are
nearly equal 70 that Of sound in air the
rroportionate increase OF tho resistance
Is much greater than that OF the velo0i-
y.
For seterulinstion of the air temper
ature at greas heights the Berlin So
ciety FOR BsllooninE is going 20 trJ .
method Of Herr Siegsfsld, who uses =
Thermometer which. By closure Of Al
electric circuit when certain temper
atures are reached. gives hEht-signsL
Small balloons. each containing such a
thermoueter. viii ~ sent up bT night,
and the u-hs viii aFaot photographicsl-
y so-cslled 'photo-sheodolite. whils
The hsight than attained viii Do in
dicased IL = mechanical way.