Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1909-07-03
SCIENTIFIC MISCELLANY.

SCIENTIFIC MISCELLANY.
| The simple burglar alarm that has
| been under test by the police author-
ties in Dresden and Berlin seems to
|, have resisted all attempts to pass
| without giving warning. 1t consists OF
a curtain or portiere, wired with fine
conductors connected at certain places
with metal knobs, and when this is
drawn across; the door or window, or
around the safe. the slightest disturb
ance throws the knobs out OF contact
and breaks the electric circuit. The
alarm may be signalled by a series OF
bells. lights or. other electrical applan-
ces. either on the premises or at the.
police station, Cutting the material or
Interfering with 1t In the slightest de-
gree has instant effect, and the widest.
having this apparently trifling protcc-g
ton without giving notice.
That the snake has sixth sense, by
which it finds its mate in the woods
and unorrinEly trails its prey. is the be-
lief of G. r. O'Reilly, for SO years a
special student OF snakes, The seat.
Of this sense OF direction is supposed
to be the curious forked tongue. which
tongue is usually applied, but is a feeler
and more, and Is necessarily darting
about as the snake travels, A lizard
was seen 'totcome from beneath house
in the woods, take n zigzag course, and
disappear under a box 10 feet away.
Two minutes later blaclssnake ap-
peared, passed over the lizards exact
course, keeping the tongue constantly
seeking the trail. and, darling under
he tn1f
zard in It's jaws. Many other observa-
tons seem to prove that the tip OF the
tongue is the guide.
Rubber is strongly contracted by.
heating, and Prof S. p. Thompson sug-
gests that it would be possible to con-
struct q heat engine to be driven by the
contraction of rubber instead of the
| expansion of water and air,
In the development of cities. lines of
pipes have been extended to long dis
tances to bring in sufficient water, and
| now.i it seems probable that cities may
find 1t necessary to pump In air or
otherwise provide artifcialy for an
adequate supply of oxygen. DR.. f.
Henriot of Paris concludes that IL is
the difference IN the atmosphere that
gives the country dweller physical sll-
Eeriority over the resident in the city.
His experiments have shown that the
carbon dioxide is constantly greater
| In the city air than In the air OF the
country or tne' sea. ana that in a large
| Guy, espscially II In a valley. the air
- stirred pS the WINDS, put Is not re-
| lfs"ea as Iast as IL IS polluted. The
| air of the country and the sea always
possesses strongly oxidi2ing properties.
| The air of the city, on the other hand,
eXerts a deoXidizing action, and the
erect OF .tne pointed ivapor is felt in
iltehs Ways---iit stunten CROWN, nervous
o disorders, ana even IN defective VISION:
-
An expected reVolutlon IN agriculture
ago made by Hellriegel, that the root
noauies OF legumlnous and some other
plahts sdpsoro nitrogen directly from
site air. announcer llatural smethod or
nAlns atnlospherlc nitrogen mas now
Deen pointed out ny Jameson, a Brit
~, ,s eHperihlenter' VINO mas round that
tne mars covering many plants absorb
nitrogen, convert u into albumetl, and
tiieh winner ana become apsorbed into
the plant. on series OF sections.
t ilttsa with stains acting on alburren,
the microscope traced very clearly the
niis ration OF the nitrogen taken UP.
GOVERNMENTS on VARIOUS trees IN Hun
sfLIS ,SplliiIni lileu iscoVerg. ana 9lndi-s
@ 80 ~ Wy - l'ieo' Sii = - teS si'tS -
very general
-
me south masnetlc pole is described
oy Proi. I1avid o. Sydney university
a member. OF, the .shackleton expedition,
as q point that travels around with a
klnd OF "a ~ movement IN a c1rcu-
iar area ao mics IN diameter and
changes us exact fS9sitlon from Gay TO
with a. Lloyd-Greak olp-G1rcle. which
mas inagnetlc needles that hlt more
anu more nearly 70 Nertlcai as the Pole
IS approached me ordinary compass
was used also IN the observations, but
refused TO act When near the pole
--.-
me gluten la1eiy obtained from corn
tiour,, uii1eIihE from wheat gluten IN its
solnnliity IN amyllc ana other alcohols,
mas been named na1sine BY loonard
ana Lalbbe, who nave been tIlvestigslt-
ing. he material - now being made
IN france as a bE-product OF the corn
industry About IL per cent of maisiIle
Is obtained by dry'ns the corn Hour.
zine, dissolVfng out the gluten with
amyl alcohol, precipitatins With ben
zine, and collecting on "a filter The