Richmond dispatch. [volume] (Richmond, Va.) 1884-1903, 1898-10-27
WITE THE SCIENTISTS.
Use of wireless TeleGrnphy by n
Newspaper.
Evening Pcst.)

OF The papers used thlS methou OF Trans
hitting his account OF regatta from a
steam yacht. The editor In question OBJ
served the races from the deck OF the
Yacht, and dictated his description TO |
stenographer, who in turn furnished copy |
to the operator I'm the cabin. This latter |
individual was Senior Marconi, the IN
Ycntor OF the system of wireless teleSra-
ply. and the arrangements made by him
proved most successful, az the messages
were transmitted 10 the receiving Once |
on the shore without the slightest dim |
Guilty, and were then forwarded TO the
CITY offices OF the paper. The extent 20 |
which the new SYSTEM may be employed |
can be seen by the statement that two |
whole columns Of news for an English |
paper was transmitted entirely by WIRE |
less telegraphy. The perfection OF the sys-
TEN will doubtless lead TO It's establish |
mcnt as a means OF communication be- |
tween warships and the shore or among |
themselves, and in the next war II Is |
destined 10 be an important adjunct
A new process for making porcelain
has been invented which, If as successful
as anticipated, threatens TO reyolutionize
the pottery industry. The method Is call
/ ed "Thonsuss." and consists in melting
| the clay and other materials In an elec-
! trio furnace and pouring into hre-prooI
mould The temperature required Is @'Zi9
/ degrees c.. and If the walls OF the noun
! are smooth. glazing is not necessary III
/ case it is essential. however. glaze If
( obtained bv allowing the object cast 10
cool off to about 1850 degrees C.. and then
adding finely powdered glass In a thin
layer. When II is considered that the
/ modern methods Of pottery making pro
| vide for pressing the clay 20 the deslred
| shane in q mould or fashionng II by
pottcr's wheel IT will be seen now reVo-
! lutionary the new process is. us chlel
merits consist i'm the prevention OF the
! shrinking of the mass in coollng ana the
! considerably reduced cost. Several modi-
Hcations Of the process have also been
devised whereby the melted clay when
cool can be rendered pliable. and also the
remolting Of the body more difficult the
main difficulty so far encountered Is the
colOred decoration. which as yet mas not
been found possible in the new process.
Coal-mining I'm Belgium presents some
striking instances OF Work at cOlSle -. a.
depths below the surface OF the GROUND.
| Al the Henrette shaft at Fleru work II
now being carried on at 3."2 feet. ne
! craI on the face is very hot ana CONSUL
| rable ventilation Is required Tor th'
! eGofts II also gives off a large amount
~ GAS which consequently renders pro-
gress slow and many precautions heces
sary. nj. 1,.,,o-
I "
plobc which IS to be constructed ulusI
the direction Of VI. Eisee RecluS' Ine
p geoarapher In his plans NJ. KecluS M
4 provided for moceI on ne ,,,olCe
: eieht miles to the inch. which VIII MAX
II nossible to show correctly 10 scaIe nv
depth Of rivers and seas ana lh' n'lsH'
Of the mountains. The globe VIII nv ~,
j sure "a feet in diameter ana every - Ii
Of ii will be constructed Win '"e
S scientific accuracy. o,oo.
, That American manufacturers vi w
e trIcal machinery and apphahcI53 iiiorirs
n ! GOOD field for work in the iniilpPi,Ii ,
Islands is shown by statemehi ,I Ieot ,ach
Observation-Disclosures 10 one of the leading teen
Nicoi journals In these ISLANDS there az
only about 72O miles OF TELEGRAPH, nr,, ,,I
! about seventy miles OF steam ~ Nf,Tiia
= no electric railways. the CT! oi W I ~
~ S!o ,olenbone exchange. which com
,n,,nicafes with the subscribers pE 49,
70 head wires. There Is also an elV ,',, t'r
q lighting station. when supPlIvs rj d.
o. t1 some 1900 incandescent l5nps anu -
s w. inns The latter installation - 81
!, Rritish origin. and the engineers Oh INA
4 country are endeaVoilhg 10 quo"
business throughout the faSt - a.,
q Some interesting facts concerning III,
l. -. furnace are embodied In paper
n ,accntlv presented 10 the Paris Acaueull
II ~ science. IN It the fall or potenlIa
l. ocroes the arc is regarded as Deiis =,
Il bv the resistance OF the gas .,y 80 ,ic9
- t0.een the electrodes. BY a us"Ie
= "nsidorattou II is shown that the t.ih
= neraturc of the arc increases - ' ~
" square Of the current ana lht "'tn,',i6,
the resistivity Of the gas 10 ~, ~ bur,
J. Mt nor unit volume, the latter Hsuie
d VARYING with the temperature. III nlaln,its
y calcium carbide the arc passes 'ooita
II q mixture forming Sort VI pnd n
# around itself, and at me uppV ,i.hicb IN,
a | tbis uOcket is a crater through "HiOn 49, 49,
. goses and Vapors escape. 1he slHe VI ~
H. cavity increases until potnt ~ - ,r, ~ 4
l. where the heat liberated pI w. az 49,.
n enualed by the losses OF neat 10 'I ,SI, H.,
[; cfunIi,., M dunn and then upon cooiih
Y. ~ interior is found To be llned WIN
ld brilliant LAYER of graphite, anu "",ntu n
l. This i'm a conCentrlc iaEcI J. - 90 IN
In CRYSTALS. while behind Is "A IayeI Ol VI
i,,nitoreI material The eXplandtCil
-, ~ offored That either the carDlde uisSo
- ciates at the temperature OF tle az az ~
y that the calcium oxide NOid'il'%r'
~ pidy that part is lost ana la, .,.','ar tho
ne d,rSd II has been found however, W"
ne "iciuno carbide associates az TEMPE .
w tIre lower than that AT "hlch CaIoI
h. Volatilizes. Thes difference OF pote't,i-.
Is across the arc depends upon nv I'D /
90 of tho surrounding atmosphere anu
or -, oypariment with a mixture OF carpo
=. , raanpauesc oxide Ii was fOuhu INA
~ dron OF 10 volts occurred across VI
'' arc while in case Where the '" ,,,i a.
carbide mixture was cmpioyeu Uhuc
re t.ii1r conditions. the fan OF pOtehH'
y. amounted TO Is 70 ~ Volts. ,,...,,,. a,sord
ed | an excellent example OF ny 20 80 -
"a | ~ made of electrical appliances III taI
i" ue nc cheering The boring OF the tui
as N33S - Hnine done with electrical arm
IN ~ - ,,bich are used in pushing IorWdr
ne ~ o,covation. Each drill Is driven ny
he ~ borse-uoWer electric motor anu u
RS horino points are furnished WIN WV
e. b,, an electrically driven pump ioI ~
"a n,rnose of washing out the IVcN uu1
It. Thc holes bored are 40 lhcheS ~ ~
~ ny ia inches in diameter the tltf
-, nH1u,,ired for each being twelve 10 me-
- Iei,tos When four holes nave Dee
nc hnrod a charge of explosive selatlne
6rad This explosive u hedteu - -
n m,,isite temperature by an electric NJ,
IL uulS .oloctric heaters are also employ
n anu Vi w. tho ice 10 furnish the wat
IT I'LL III foT the boring machines. Electt
~ suppiS ventilate the tunnel ana lor
- DIV. -. IN the headings. Near the hlou
as f ,be tunnel the ofliceS' SHOPS "a,
IN Sr.eiiines for the workmen are, " !,
ny dWS Sl''' SSeated and lighted. ana IN 9
nj calE, ~ bouses the cooking as well
,or GWel''hh ~. siectric-stoves. The motors
-, uone ,or use on the railway are 10
~ ss,eeNV t,orse-power. and run AT e' Ies
as OF 9ggd,jng In turn with rack on |
ie' ,it,n,,S ner minute. The arplature "
's- ~ cared 10 two sprocKet-"heela' ~
al nup IoMod JalRaIS 10 s4Voil, 20 70 o
On 11pnIISunr 9ul 20 dol Sul u ,o snta,or,o
NV oSlAu 10 uonuoIuI 9Ql 81 II 'sIoSu9ss'u u
=. Spl ~ ,nDns rIoBS 'sIB) oAl MHIp OF 81
"e -ioJ DuHnup 'sIoloW 9s9ql 10 oMl "A
% vV us,nomoooI UoBa 'Hoeil 'ql ~ 7
Tx I'm Illuminate the numerous lce-caPp
hd neoks in the Viclnl'y
n, -'
IL r, Inst of the Postboys.
,f 4. r,rsIev the other day there died
=, Az ~, on old man named Tom IA