Charlotte messenger. [volume] (Charlotte, Mecklenburg Co., N.C.) 1882-18??, 1886-11-27
SCIENTIFIC AND INDUSTRIAL

No dictionary in our language gives
the common word dynamo, meaning the
machine that generates electric power.
The dynamo machine is the practical ap-
plication Of principle discovered in 1856
by c. Werner Siemens, at Berlin.
In France electricity has been very sue
eessfully applied to Quieting TeStive and
vicious horses while being shod, The
arrangement comprises simply an indnc-
tion coil, dry battery and device for
giving shock of graduated intensity.
A list of over forty new chemical elc-
ments, whose discovery has been an
no,need by eminent chemists since 1877,
has been prepared by Prof, II. O Bol
ton. Nine Of the supposed new ele-
mentr have been detected this year BY
Cr0okes.
A European hortie0ltnrist afirms that
washing before cooking impAirs the
flavor Of vegetables, Dirt should be re-
moved with cloth or brush, or, K wash
ing cannot be avoided, il should be post
poned until the moment before cooking
is commenced.
The fraudulent weighing Of silk goods
by means of the biehlorido Of tin is said
to be constantly Increasing, An increase
in weight Of from 100 TO 100 per cent. Is
obtained by this means. The silk manu-
faeturerS of America do not, il Is asserted,
resort to this dishonest trick.
The number Of glaciers Of the Alps is
1,155, according to Professor Helm. OF
these France has 144, Italy rs, Switzer-
Tkas, AL
superficial area is between 500 aud 1000
square miles. The longest is the Aletsch
glacier in Austria, measuring over nine
miles, and 249 have greater length than
four miles and half,
In the latitude of New York, Professor
2. ID. Penhollow has found the proper
ton Of water in trees aud shrubs to vary
according to these general lawss l, The
water in woody plants is not constant for
all seasons, and depends on conditions of
growth. 2. 1t is in greatest amount late
in May or early in June, and least in
January, 3, 1t is greatest in proportion
in the sap wood; least in that which is
older. 4. When plants grow most rap
idly they have most water.
Ballistics, or the science Of prolectiles
is to be studied with the aid Of photo.
graphy. In the interest of the German
admiralty, Krupp, the eannon-fonndea
of Essen, is to employ an expert TO pho.
tograph pro; ;eetiles in transit, the receE
of gun carriages, the penetration of ar
NOR plates by pvojeetiles and similar
phases in artillery practice, As psojec-
tiles have an average velocity Of i,50e
feet per second, the obstacles to be over
come in obtaining satisfactory photo
graphs are very great, RecesSitatSng the
most delicate apparatus and the most
skillfUl manipulation,
1t was first observed by Haley that the
time Of the moons revolutions round the
earth has for several thousand years becr
decreasing, or her velocity has been in-
ereasing. This phenomenon remained
for considerable time iOoSplieahle; AZ
last Laplace, in 1887, discovered the
cause in the varying eeeentricity Of the
earth's orbit, which has been on the de.
crease since about 1s,Ol0 years B, c.
Since that time the moon has been grAdu-
ally coming nearer 10 the eaTths aud this
will go on till SO, 9C years after Christ,
when the eeceRtricity Of the eNrth's orb.
viii begin again to increase,