The Emmett index. [volume] (Emmett, Idaho) 1893-1925, 1900-07-13
10 Science
| la&8 o. ANO
S5ssl41VentiOn

From north to south Alaska stretches
loo miles. or 3oO miles further than
from the great lakes to the Gulf Of
Mexico. Its width is greater than from
Chicago to London.
To run an eighty-car freight train at
twenty miles an hour requires over
100000. OOO-foot pounds Of energy. At
thirty miles it requires DID,, 600 ,OOO-foot
pounds, which is equal to the energy
manifested by Sixteen-inch gun
whose projectle weighs 1920 pounds
and fired at 1900 feet velocity.
The possibility Of the ostrich being
used for kind Of two-legged saddle
horse. as the natives of Abyssinia are
said to have employed it. was demon
strated at Pasadena. Cal. recently by
CORRESPONDENT of the Scientific Ameri-
can. He not only mounted a full-slzed
male. ostrich and rode 100 yards on its
back. but also had photographer make
a nicture of him on his feathered steed.
In Germany the graduated Stag from
blast furnaces is being utilized for the
manufacture Of brick. The making OF
Stag brick is not a new thing. but here
tofore fluid Stag has bee nemplOyed for
the purpose. and the brick thus pro-
duced has been found unsuitable Tor
building purposes because it Is imper-
meable to air and steam. But the Stag
bricks made in Germany are, it Is said
not open to this objection. On the con
trarv. while exceeding the strength OF
ordinary bricks. and possessing an eX'
traordinary resistance to heat, they are
more nermeable toair. and consequently
are well suited for the building OF
houses They do not absorb water As
ropidly as ordinary bricks.
Recent examination by Prof. I. q
Ronnev of powders containing dia
monds from the famous blue ground
rock Of South Africa leads to new
Vows NJ the origin Of the gems. Prof
Ronnev considers that the diamond Il
NOT nroduced in the blue ground a
some have heretofore thought that l
was but is present in it as derivativ
from older rocks The powders exam
,nod we're evidently water-worn, an
consisted OF garnetiferous rock. IN
diamond and the garnet. Prof. bonne
marks are brought into very clos
relations by the discovery of two spec
mems showing the diamond apparent
EMBEDDED in the garnet. The blu
,.ro,nd in which the diamond and gal
-, hearing rocks are found, is a vo
canic product.
!, Central America are many strane
n,rds with stranger habits. but prof.
sMv none are more interesting than
,,ttie brown wren who may be see
st,,., rho roadsldes or on fences. IN
, tittIe bird. about the size Of eanar
,,,,ilas a nest out of all proportion
~ annareut needs. He selects a sma
80 With horizontal branches grown
-. together. Across two Of Il
,,nnncbes he lays sticks fastened I
,otber with tough fiber until a pla
-, about six feet long by two fe
e - il constructed. On the end
S.,. platform nearest the tree trunk
a t .,,, builds a huge, dome-shaped nest
a soot or so high. with thick sides of
a .,r,.oven thorns. \ covered passae
I - is then made from the nest to t
J. vi ~ the platform in as crooked
manner as possible. Across the out
o end end as well as at short intervals alol
e - ,nside of this tunnel, are plac
> INNING little fences Of thorns wi
:. ,ost snace enough for the owners
Il 80 80 through. On going out. this ope
e inc is closed by the owner 10y placi
5 ,horns across the gateway and tn
d enc safety OF eggs or young is assure
I u,hn hirrer the man. the more char