The Pulaski citizen. [volume] (Pulaski, Tenn.) 1866-current, 1882-01-05
SCIENCE AND ART.

COiENCE AND AHIs
FRoM the speed of light. which hsa
been measured, it Is proved that at least
four hundred and ffty-One millions of
millions of these minute waves dow into
the eye and dash against the retina in each
/ second
WHrE FISH less than week old and
looking like a pair of eyes with a tail, il
1 placed beneath microscopes are found to
/ be transparent, and exhibit beautifully
the action of the heart in propclling the
/ blood, and its circulation through tho
/ tail.
II seeds (barloy, corn, etc, ) be placed
/ betweenmoist pieces OF litmus paper, the
roots stick TO the paper and color so in
tensely red that even ON the back Of the
/ paper their course can be traced in red
lines on q blue ground. iii tucture of
Etmus be repeatedly added, the intensity
OF the red color is increased
PBOP. j. LAwRENCE SMrrH. OF Louis
vile, Ky, in paper read before tho
French Academy of Sciences. SAYS thnt
the metoorita which zen 40 iatleryillo,
Iowa, on May 40. 1879, shoId beRlaced
apart for tho phenomena 81 les Ctil, e-
/ pecialy the force OF penetration az is
iraGma1ts into the ground, add Or the
mode of associatou of Its mineral con-
stituents.
An Italian Antarctic expedition Is pro-
posed 10y Lieut.. Boya. Who vis ono of
the officers under EordaLsk,oll uu the
Vega. 10 is To sall in the spring a 1881,
and touch 40 Monte \ideO, Terra del
Fuego, Falkland, and South Sl tlaad
Islands, and, proceeding in southwest
wardly direction, commoncocXp
expecting TO bo engaged for two winters
IN the Antarctic region and return ty
way of Hobart Town. The expenses ilrs
estimated at 600, 600 lire.
Az instrument called the stithniO-
graph, for recording the speed of railway
trains, has been invented 10y a Cermun
mcchaniciGu at Casscl and works SO weu
that the Irussian Government is about
to test it on some of the State lines. 4
dial IN Wow of the engineer enables him
to ascertain the velocity of tho locomotive
at any moment, and tie changes of speed
are graphically represented upon a roll OF
paper, which can be studied at the end
of the journey.
A FEW years ago Herr Kolbe suggested
driuCing-wat, used on long VOYAGES
might be preserved from corruption by
means OF little salicylic acid, ana this
was supported by laboratory experiments.
Alterward experiments were mado ON
large scale on board ships without sue
cess, and when the water was examined
not particle of the acid could be found.
What becamo of the acid is an open
question Herr Kolbo considers ihat tho
action of tho wood Of the caslt decon-
posed the salicylic acid.
SOMEWHAT in those words nm English
scicuuuc journal introduces tho follow
ing suggestions They propose 90 light
the whole of London 10y means of "a great
central heht-housc. Suppose "a CIRCULAR
tower, say 900 feet or more, W. n gal-
lcries ot intervals Of one hundred feet,
and each gallery provided with O. swiaa
OF electric lamps, with reilecl0B ar
ranged 40 suitable angles, Iho light
could Thus be directed and diilusud over
the entire metropolis, rendering pas-light
mncccssary except in the submhs. This
is the suggestion. Who win carry j, into
effect?
THE Philosophical Society of Glasgow
is 90 hold an exhibition of goa apparatus
on q large scale next autumn, and IL is
intended. also, to make "a display no the
same time of tho apparatus whic. viii
lllu tla.e tla progress made u glectrio
lighting, Iu telephone communication,
ia tie mnmiactue Of mineral oils. in
hydraulic engines, in heating and 1cnti-
la.i.J. ,te. Thare cau De no Doubt chat
this a,tipn taking up. na 10 means to
do. como o. the most important prob
len a which MANS attention il giteu at
pr g. WiI prove OFF great Hrsl.o 90
those Who nHe 90 dead practically with
slIl.Hr sI' Hucef.
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