Aberdeen herald. [volume] (Aberdeen, Chehalis County, W.T.) 1886-1917, 1906-04-05
H.. (Aa2nax, Science
IL s2alsS hNo
* &:3:::llilveaflti0n

Sodium or zinc-slllcatc. In n hot one
| half or one per cent solution. Is a new
French preventative and fireprooflng for
wood, especially for mines.
| Passing bubbles under ships by an
| air jet, or lubricating with kerosene oil
| two or three times a day, has been
| suggested AZ Il means of lcsscning fric-
| ticn.
| The 'recognitlon. sci,se" Of ants Is
! found by II. Peiron to be Il recognition
| OF odor by the antenn;p. The usual
hostilities OF ants ceased when those
| OF the stranger species or community
were given their own odor, while after
| losing their antcnnr they fought friend
and woe alike.
! During the last twenty years 2.O61
place In Germany and only thirty-siX
cases OF accident have befallen the
1870 persons taking part in them. Con
scquently one trip in ifty-seven comes
to grief or one ncronaut in 21O meets
with an accident.
! Sir Robert Ball, who has been lee
| turing on the glacial epoch, informed
his hearers recently that the next ice
| age is due 2cO,O0O winters hence. Then.
lie says. all northern Europe and Amer
| lea will he once more under an Ice cap
! that will cover the highest mountains
| and last for many thousands Of years.
| In IL novel device for preventing the
racing of propellers pendulum gray
| itates with the vessels motion. The
| PENDULUM is connected to the throttle
valve. aud as the stern rises steam Is
gradually shut of up to the point
where the engines are stopped alto
gcthcr, the valve being rcopencd as the
propeller begins to take water again.
For the purpose OF studying the
cnuscs Of mountain sickness. two
French medical authorities, Drs.
, Gui!lenark and Mooe. during last July
made Il stay ut the Mont Blanc Observ
atory. According to the results Of their
| invest igatlons. which have now been
published. the diminished tension Of
the oxygen of the atmosphere clogs the
process OF oxidation and this sets up an
| elaboration of toxic substances, the re-
tenton Of which causes symptoms Of
autolntoXicatlon.'
4 recent discussion Of the duration
OF life among birds in the English peri
od'r.l. knowledge, recalls the story OF
n venerable parrot which humboldt
..tv during his travels in South Amer
ia. and which. although very voluble,
could not be understood by anybody.
because the words it used belonged to
, the language Of tribe of Indians who
had become extinct since the aged bird
! took its lessons. Parrots are proven
Ljally long-lived. and so are ravens
and some species of vultures. A white
headed vulture died in the geological
gardens at Vienna after llS years of
captivity.
Recent experience with the acety lene
blowpipc in England has approved it
os 81 valuable invention. 1t produces
81 temperature exceeding 1000 degrees.
The temperature producble by the oxy-
hydrogen blowpipe, 5000 degrees to
4 300 degrees, is limited by the dssoca-
tion temperature Of steam. whereas
with acetylene the limit is that OF the
dissertation temperature OF carbon
monoxid, which is much higher The
acetylene. in dissolved state. is used
I'm conjunction with oxygen. 1t splits
m into its constituents hydrogen and
CA rbon. at the base Of the fame. and
the carbon only takes part in the burn
ing. The hydrogen remains free and
forms protection to the small cone at
the nozzle. where the carbon ia burn
ling, and which Is the point OF maximum
temperature.