Wauwatosa news. [volume] (Wauwatosa, Wis.) 1900-1948, 1906-07-21
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Explosive rock has hoo.
from the north of the Tapor, .se9'F,sl
Austria. The rock is in smell, 'u'l-lel il
sion that, without warnjno .l. 5-'''e''
eral yards in dimensions viii 40 sew
denly hurled from one wall - 3' >ll,
er' Fatal accidents have rasl,l, ,'5 0'l'
San Franchises earthquot. ~,
and duly registered by the s.is., - lett
Of the zikawei observatory. na9 ,.'S W
hal, China. The perturbation v,, @4'-'
er strong, and the commotions ,"'l'
gated through the eartb's cr,,.. L'o.a'
a little over one hour and rbfr-r ,' s
minutes. ''olG
Pontypool, England. is auv,ors
the electric cable that runs +hro,,, 1''l'
town. The corporation surveyor S 49, ''7
that several horses have ta,,an en,,
owing to the electric current .,,l ''s1'
their shoes and throwing them an .l.
launches. a town coupcjl,r soi, ~.
streets We're full of curreDfo and s'-.
the town might be blown mn -, '-''
moment" '1'
Acetylene is being used rs m
plosive in Germany. where it has n.a-
en- disappointing as an illumjnant r,..
cartridge contains an ounce and tb..'
fourths of calcium carbide vioI1..-
about sixteen quarts of acetylpns a11
after wetting the carbide the con4rq,
mixture of generated gas and air a.,
exploded by an electric spark. In bl.,.
ing the rock is not thrown out bpt \,
broken up into pieces small eDoncb >,
be readily removed.
In liquefying helium, the last of tbo
gases that have been thought 70 no NJ.
manent, Olszewski has reached ton
perature of 271.3 degrees below zoro
Centigrade. This Is cold abopt :,
degrees greater than Dewar obtainod
three years ago in liquefying hydrora,
and Is within about 9 degrees of ina
supposed absolute zero. The Question
has now been raised whether 273.7 da
grees below the freezing point of waite,
is really the absolute zero.
The continuous expansion of the steel
industry, and the consequent call for
Improvement In the qualities of the
metal, have led to many experiments
that have produced. in some cases. sur
prising results. Every one knows the
extraordinary effects Of mingling a H.
tie nickel with steel But the possbI
tiles of steel alloys have apparently
only just begun TO be explored. One
of the latest of the valuable results AZ.
tanned by the experimeuters is due to
an intermiXture of Il little vanadium.
Steels containing from to T. per
cent of nickel have both their tensile
strength and their elastic limit m
creased by the addition Of not more
than l per cent of vanadium This is
especially true when the steel IS ten
pered by heating to about $50 degrees
Centigrade, aud cooling IN water At
atmospheric pressure.
1t is generally known that the colo3
of vegetation vary in intensity In d.
rect ratio to the amount Of sunlgL,
combined with GOODNESS Of Temperature
within certain limits. Examples are
the intense redncss of apples grown 10
northern climates, and the deep colOD
of Alpine vegetation. But the soil, and
other influences, also have an effect
upon plant colors. Henry Kraemer Las
recently experimental upon the artl1
clal control of the colOrs OF plants
through the introduction of chemicals
into the soil they grow in. In ye'g
small quantities such chemicals are a9
sorbed without apparent injury, but The
effect upon the colors is slight yellow
roses, for instance, appeared TO become
deeper in color under the Influence o.
aluminium sulphate and potassium SUI
phate. With the use Of these same
chemicals the petals of the white car
nation showed a tendency to develop
red streaks, whereas when fed Wild
ammonium sulphate. aluminium SUR
phate, iron citrate and citric acid scar
let carnations tended to form WINE
Streaks.