The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1885-1921, 1902-04-26
SCIENTIFIC

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A new speed meter for automobiIs. !.
enclosed in dust-proof metal case 80
contains two fans. the smaller one 49,
detected by air currents from the lars-s
one. The arbor on which the small g
is mounted carries a pointer and ha. .,
handspring as counter-force. The larrA,F
fan is driven by the tire of one OF ~.
road wheels. and at the instant of taks..
a measurement the roller at the END -
| the fan shaft is brought into direct ear.
| tact with the tire.
| The appearance OF a particularly h,l
! liant meteor has brought to many n.r
/ sons the suggestion OF strange NOS.
which has been likened to the screess
| ing of distant locomotive, the yaft :,
child in distress, etc. Such eject
purely imaginary. To show its absuras,
Mr. G. Mckenzie Knight NJ b. A.
points out that at the usual height OF
plcsion any possible sound of datona.
three and one-half minutes after the ".
ishing of the meteor.
Considerable progress seems to hnv.
been made in the use of peat wool ny
material has been undergoing trial L.
Dusseldorf manufacturers, who prepare i,
by isolating the vegetable fbers and Tho.
treating them with acids and alkalies. tha
result being a peat wool consisting A.
nearly pure cellulose. This soft sstic
product may be spun like Sleeps r1aI
Mixed with cotton or Sleeps w4o, r.
may be made into various texti',s aSs
while it seems to have been n1esr sue.
cessful for felt hats. it has given uio,,s DR.
less satisfactory results for d~ess g0o5s
carpets, etc. which may be b.el.ne,, ar
dyed. Peat wadding is especially yalu-
able for surgical dressings.
Fire being now prohibited in Partisan
playhouses. the manager of the Chatales
Theater has devised an electric boiler fer
stage steamboat. This has a Capacity
of twelve gallons, and is provided with
a whistle. siren, pressure gage, and the
other accessories. Through holes in thu
bottom project ten tubes fourteen inche:
long, closed at the top. Into each tuhs
is pressed so-called Candle" consists.
ing of cylinder of fire clay surrour.s@s n
by German silver wire spiral coet<A
with asbestos cardboard. and the pasY.x
of an electric current heats the wire to
redness. With the candles all in circuit
current of forty ampereS gives sun-
Gent steam pressure for whistle and siren
in about hour and half.
Many methods of using sawdust and
waste wood have been tried and abaa-
doned. The new process of Gust. "
fteluSnSIatn, a SWSdlSn engineer, is
claimed to have proven successful, ana
consists in pressing the well-dred ma
tegial into briquetteS, and subjeetizy
these to destructive distillation under me
chanical pressure in suitable coaling ap-
paratus. An effect of the pressure is to
retain in the charcoal wood-tar contain
ing most of the pitch. Only the r-eils
of lower boiling point, having little pitch
pass off with the pyroligneous vapors.
which are liberated from the coaling re-,
tort formed, and condensed and stored
for working into chemical products
Attempts have been made to measure
he light of the moonless night sky. Mr.
Gavin ]. Burns, an English astronomer.
las roughly estimated that the total light
II one hemisphere equals that of 1000 first
stars, and Professor Simon
Sewcomb has-perhaps more accurately
Ound this total light to be equal to
hat of 600 to 500 first-magnitude stars.
fhe brightness seems to be not entirely
lue to visible and invisible stars. The
OdiacaI light and the Gegenschein, mid
light glow opposite the sun, have been
cen to extend across the heavens, ana
is suggested that these are but intensi-
cations of a general luminosity of The
ntire sky due to some unknown cary
The influence of electric discharges ~
moke was shown by Lord Rayleigh ina
experiment illustrating recent
Royal Institute lecture. A large glass
lobe was filled with q dense smoke fren
urning phosphorus, and Wimshurst ma
hine was then made to produce inside
he vessel an ordinary brush discharge
t very rapidly oscillating electric cgr-
ents. The effect was magical, the globe
cling cleared from smoke in a few zee
nds through the cohesion of the parti-
les and their settling upon the glass.
he possibility is pointed out that Lon
on fogs some day may be dissipated by
igantic electrical apparatus, but if net.
lie brush discharges on a small scale
lay be made at least to act as smoke
0nsumers
The "Oxyiithe'' of Professor G.. T. Jou-
art is stony substance like calcium
,rbide that gives off large volume Of
xygeR when desired. 1t was intendes
n in breathing apparatus in whieh
vers are independent of the external
r, and, aided by process of absorbing
Irbonic acid gas, it's results haze been
ost promising. The inventor mas nsw
'und another field for his stored oxy-
IN. Experiment has shown him that it
axes possible the running of a gas IN
ne in an air-tight space, and, more
Ter that it may reduce by 80 per cent
e consumption of gas, petrole or ahs-
ii necessary for a given power IL
ems to solve a difficult problem in sss-
dr1ne Navigation
her motive power besides that OF cleo
ical storage batteries.
A map of the functions of the fore
TT of the brain, the frontal lobe, il tne
piece of work of British sHr-
ons. The experiments were tried ursE
impanzees, which rank near man in tRecsx
ale of brain development, and the ~
atoms began with the making OF tnsu<
enings in the skulls of the anaesths6T
ed animals. The wounds being heaIes q
e pole of an electric battery was fas
ned to the apes wrist, while the otnsr'
the form of a platinum point, wS
uched gently to the brain. The re-
onses were prompt and often ludicrous,
e movements of the body SHOWING
,arly that the nerve stations eXcites
ntrol respective parts as here ina
ted: The lowest part of the frontsi
,e the eyes and other organs OF tae
e; the top of the brain Just BENIN
forehead the toes; a point under tie