Lincoln County leader. [volume] (Toledo, Lincoln County, Or.) 1893-1987, 1901-04-05
EtslAmSCienCe
&< No 40
) ): ss:&ss4I1vention
~ON~~~~~~~

AhS Soiai oiu WOuiu appear Dlue 10
anybody who should view it outside of
this planets atmosphere.
Sunlight is a bundle of rays of light
red, orange, yellow, green, blue, in
digo and violet all mixed together The
mixture Of all colors is white light, the
absence of all colors is utter darkness.
Every traveller in France has been
struck by the sight Of multitudes of
slender poplar trees growing by the
roadsides and brooksides. Two or three
times in twenty years the branches of
these poplars are trimmed, and the
light wood thus obtained is dried and
sold to bakers, whose practical science
has taught them that the quick, intense.
heat produced by burning poplar is ex-
cellent for giving a thick crust to their
bread
1t is said that the production of arti-
hcial indigo by chemical process has
now advanced so far that it threatens
the producers Of natural indigo with
very serious competition. The East
Indian indigo cultivators are urged to
call In the aid of science to improve
their methods before it is too late. Nat
ural indigo still retains one advantage
over the artificial product in the pres
ence of certain substances which fa
cilitate the operation of dyeing, and
which are not found in artificial in
digo.
While 1t is found that the glacial flow
In the region of what Is now the Con-
necticut valley was directly southwark
(as we know by the glacial scratches
and striae on. the upper surfaces of
ledges recently denuded of soil, and by
trains of boulders), it was eastward,
or at least east by southeast over the
region bordering on Massachusetts,
Bay. The biologists find evidence also
that the forward edge of the glacier
extended some fifty or more miles be-
yond the present coast line. Georges
Banks and the sands of Cape Cod are
the abiding visible record of the gla-
cier deposition that went on not far
away.
The sea is blue because the water re-
fleets the blue rays of light, but shall
low seas are green, because the blue
light is mixed with the yellow reflec
tions from sand and stones at the bot
tom. Green is mixture of blue and
yellow. In this green light of shallow
water all seaweeds grow, and, for
want of the red rays, they have golden
and tawny leaves. Green and red sea-
weeds are the exception, and blue sea-
weeds are as rare as-blue tree leaves.
At this rate, land plants grown under
glass ought to turn golden brown. like
seaweed. They do. Experiment has
shown that under green glass plants
grow nearly as well as under clear sun
light.
Mr.. Marconi has lately succeeded IN
modifying his receiving and trans
mitting appliances in wireless teleg-
raphy in such way that they will only
respond to each other when properly
tuned in sympathy. The result is that
messages can now be transmitted
without danger of their being under
stood at any station except that which
is furnished with the proper receiver.
In this manner two messages have
been sent simultaneously to the same
place, each being recorded only on the
apparatus specially attuned to receive
1t without affecting the other appar
atus. The necessity for extremely high
masts from which to transmit and re-
ceive the electric waves has been done
away with.