Amador ledger., 1908-06-12

/
promises new era. In the now
familiar Ives method, the red, green
and blue are stted out by three
screens of colored glass, the negative
taken under each containing the de-
tails of "A portion of the view, and the
complete picture is brought out and
the colors given to it by placing a
screen behind each plate in a project
ing lantern and combining the rays
from the three lanterns upon the
screen in one projection. In sim
plifying the process two lanterns and
one screen have been eliminated
Two screens-one green and one
orange -red-aIe found to give correct
color effects, and the film is first ex-
posed in alternate strips under the
screens, the oolors being restored in
reproducing the picture by a rotating
disc, SO syncronized that the proper
color will always be opposite the
point originally exposed under that
color. The defects are corrected by
the eye defect known as persistence
of vision.
An alloy that gives off showers of
sparks when struck with metal
igniting not only gas but alcohol
soaked wicks-was recent accidental
discovery of Auer Won Welsbach. 1t
consists of iron with cerium, lanthan-
Ium or other of the rare earths used
for incandescent gas mantles, and the
sparkling is found to reach a maximum
with the percentage of iron at 30. A
use for igniting explosives is suggests
ed.
BY Norwegian process, sap is
forced out of green tree trunks, and
dye is injected IN it's place. This is
claimed to give colored wood for
furniture and finish that will not
warp and is much more durable than
ordinary wood.
he new folding boat of the Ger
man army, especially adapted for
IN ounted soldiers, is claimed to be an
advance in military engineering.
Being needed only temporarily the
steel cavalry lances serve for a frame,
from II to IL being usually used, with
) or more for oars. A water tight
sail-cloth is taken along for the cover
ing, two being usually carried on a
horses back, and the special oilcloth
covered oar blades can be folded
together to slip into the pocket. \
few men put the boat together in
three or four minutes. A load is
about $500 pounds, but number of
boats can be joined for ferries for
horses, guns and heavy materials,
and even for pontoon bridges. In
the boat drills of the Upper Rhine
and neighboring lakes, 10 men have
crossed swift water at load. with
arms and saddles, the horses swim
ming alongside.
The edible seaweeds of Hawaii
number more than 10 species, of
which about 40 are in comm on use by
the natives, and M. Reed of the
Hawaiian Agricultural Experiment
Station, suggests that these seaweeds
should supply the raw material for a
large industry in the manufacture of
gelatine, glue, starch, etc. Japan
derives large income from utilizing
its algae. The Hawaiian species,
known IDEALLY as limu, are now
crudely cultivated, and are chiefly
used as salads. Analysis of sun dried
specimens of typical species have
shown composition of 1873 to 1877
per cent of water, SIS to 14.87 OF
proteins lgelatine), ETC., sos to 6l.4
of carbohydrates, 0l9 to 2.9S per
cent of crude fiber, and l56 to 1913
of mineral constituents.
A remarkable machine made by
lately deceased member of the Royal
Microscopical Society for writing
with diamond seems to have been
broken up by its Inventor. A speci-
men of its work Il the Lords Prayer
of 227 letters, written in the l-237000
of square inch, which is at the rate
OF 81, $50, OOO letters or fifteen com
plete Bibles, to single square inch.
10 decipher the writing it is necessary
to use l-l2 inch object, which is
the high power lens physicians en-
ploy for studying the most minute
bacteria.