Passaic City record., 1892-08-20
SCIENTIFIC AND INDUSTRIAL.

Cooking by electricity is increasing.
The drcne bees eyes each contains
1900 mirrors.
The common caterpillar has 1000 mus
clcs in his body.
Artesian borings have recently proved
to be very successful in the Saharan
Desert.
A steam launch has just been built
which makes mile in two minutes and
one second.
A London firm finds a windmill the
most economical means of securing the
motive power necessary to run a dy-
namo.
1t has been computed by competent
authorities that in a single cubic foot OF
ether there are locked up 10000 Ieet OF
energy.
1t is calculated that IN London nearly
100, 900 tons of sulphur are produced
annually by coal consumption and thrown
into the air.
Recent experiments in France on the
velocity of propagation OF electric waves
give a mean velocity which is almost ex-
act!y that of light.
The best way to clean wells and cis-
terms of foul air is to throw down peck
of unslacked lime. Tie heat SO caused
carries out the foul air with rush.
Experiments made by Hungarian
physician on animals seem to show that
permanganate of potash acts as an efti-
clent antidote in acute phosphorus pol
soning.
According to DIR. Hansen, the red in
flowers isa single pigment soluble in
water and decolorized by alcohol, but
capable of being restored by the addition
of acids.
The dynamo is replacing the battery
to such an extent in telegraphy that its
use will, it is thought, be universal in
few years. It is both cheaper and more
efficient.
Investigations of rain drops lead to
the conclusion that some of the large
drops must be more or less hollow, as
they fail when striking to wet the whole
surface enclosed within the drop.
Many OF the small lakes OF the alkali
and saline regions of California, Nevada
and other parts of the world are sat-
urated and deposit their salts when any
of the water is removed by evaporation
or when salts are added from the inflow.
A watch for the blind is among the
newest inventions. A small peg is set
in the middle of each figure. When the
hour hand reaches given hour the peg
for that hour drops. The sightless own
er. when he wants to know the time,
finds which peg is down and then counts
back to twelve.
A new alloy for use in the manufac-
ture of wire sheets and castings has been
introduced by New England firm. The
wire made of this material resembles or
binary copper wire on the outside, has
pinkish white tinge at the surface OF
fracture, and is very strong without
losing much ductillty.
There is still chance for invention
in electric railway controlling switches.
The awkwardness of regulating cars
speed by brake which turns one way
and rheostat crank which turns the
other is evident. Sooner or later lever
arm OF some similar device will replace
some of the confusing number OF crank
motions with which manufacturers at
present equip their cars.
The color of the water of the Medi-
terranean Sea varies considerably. Du-
ring storms it is deep green and some
times brown, and when calm OF deep
blue. In the Besphorus and among the
archipelago it IS of varying tints, in
some places being of liquid blue grad
uating into brighter green, and in
others assuming blue so deep as to al
most annroach n nurDle.