The Cheyenne daily leader. [volume] (Cheyenne, Wyo.) 1870-1884, 1882-04-09
SCIENTIFIC nIsCELLAxY.


Compiled for the Chez enne Leader.
An examiner of recruits drafted into
the German army, states that a lon
series Of careful measurements haV
established not only that the height Il
a mai varies very considerably at dll-
ferent times OF the day, but also tia
this variation occurs with great regu-
larlty Ill every individual. The gieaI-
est change IN height observed was al
Inch and n ialf.
A consideration Of various phenou =
ana has led DIR. e. W. SIemens to sug
gest the hypothesis that the sun derive.
from interplanetary space hydrogen,
hydrocarbons and oxygen, by winch liz
heat is kept up. The products of CON
Neutrality-suspicious. vapor, cal bonic anhy
drid and carbunic oXlde-are %TetuTne,
to space, where they gradually becOm'
Separated int the original gases through
the action Of the ola rays at u mode
ate temperature. THUS the heat dm
fused III space by the sun is not wast+u.
but is made to cUnserYe its own enrrgS
by preparing fuel for the continued eA
istence Of its fires.
DR.. Werner Siemens considers Il t
use Of the electric llght to be absolutely
free from risk Of tIe, even in the most
innamable structures. Contrary to til,
general belief the electric tension re-
quired is 30 low that no measurabl.
spark can pass between two wires or t,
other objects.
A Swiss experimenter is said to have
produced artificial Diother of pearl
which n II be distinguished from TIT
genuine.
The microscope has detected BLOOD
eorpuscleS on steel after III exposure u,
two years in the woods.
Electricity has been applied to pile
driving; u water wheel furnishing til,
power, which Is transmitted by two dy
namo-electric machines with connect
ing wires to the pile priver at a consid
cradle distance away.
DR.. Helot, of Bolbec, France, give b
8 of al epidemic of diphtheria III b
previously healthy villege near Caux
A tripe dealer had thrown a quantity
OF animal refuse into a pond near his
house, and when il was denounced as b
nuisance the mud and water were ap
nlisad IN tho land ~ pnaR,ra s,.
epidemic Of diphtheria broke out auu
lasted six months. A similar error VIA
committed u second time, and with tht
same results.
The compass has been found to bt
sensitive to certain atmospheric pertur
bations which do not Affect the barom-
eter.
A remarkable phenomenon due TO re-
fraction has been twice witnessed b,
Herr Hakonsen- Hansen in Norway.
Ga both occasions, at about 3 O'Clock IT,
the afternoon, a ~rose-colored stripe ap
peared, stretching across the sky from
northwest to east. From the middle Of
this rose a vertical column Of a some
what lighter red color, and inclining OF
Its western side to a shade Of yellow,
the whole being intensely bright. IL
about ten minute, tie colors gradually
faded, leaving behind a blackish.gra,
Streak. The striking apparition of TIL.
vertical column recalled u the observer
the descriptions given in past ages OF
bloody crosses seen in the heavens, and
regarded as prophetic of coming wars
aud pestileDce.
The CLEAN of falling water, according
g Mr.. J. S. Gardner, attracts certain
insects quite as powerfully as does arti-
ncial light. In Iceland he has observed
moth after moth to fly deliberately into
. waterfall and disappear. He thinks