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SCIENCE
THE CHINA MAIL, MONDAY, JUNE 8, 1957.
ENGINEERING
LUBRICANTS FOR A-STATIONS
Anti-Radiation
Greases And
Oils Developed
Special 'petroleum products developed by Shell will be used in the operation of the first of the Central Electricity Authority atomic power stations at Bradwell, Essex, which is being built by the Nuclear Power Plant Company,
When initial schemes for atomic power stations were being considered it was realised that among the important problems to be tackled would be the lubrication of plant subject to radiation.
conventional
A
of
very large number
synthetic as well as petroleum lubricants, have now been ex- rosed to various dosages both of gamma radiation and neutrons. An examination of the samples after irradiatoin showed that many had undergone profound changes in molecular and
physical properties. For example,
certain COM-
structure
View of tubes arranged round source.
True
PROBLEMS TO BE
SOLVED IN
ATOM AIRCRAFT
BY DEREK HARVEY
The success of Calder Hall power station has focussed world interest on Britain's nuclear developments, and experts are now convinced that
Motion nuclear powered aircraft will eventually be a
Radar
practical proposition.
"
The majority of Britain's aero-engine concerns have been, sending groups of engineers to attend the United Kingdom Atomic Energy Nearly 200 orders have Authority's Reactor School at Harwell, and at been received for the least two of them-Rolls-Royce Ltd, of Derby, Decca true motion radar and Hawker Siddeley Group Ltd, of London-
system since it was
an-
nounced last October. have established full-scale nuclear engineering
The company say that the sections within their organisations.
system has created" mora in-
terest in the shipping world The fundamental advantages arranged to move in on out of than any other marine of the aton-powered uberaft the uranium core to act as tha navigational aid development will be to almost unlimited "throttle". sinco the end of the war.
rango and endurance, due to the A cooling stream of water, EAS Their demonstrations racht enormous heat values of nuclear or of a liquid metal such as Navigator ha been running fuol-many tens thousands sodium, is continuously pumped continuously
the River of times as much as "chemical" through the reactor and caries Thames to
moet almost over-fuels like petrol or kerosene, of the intense heat which can whelming demands for live only half an ounes of Uranium then bo used in an otherwise 235, for instance, would be normal turbojet or tumboprop Burnet in flying in aeroplane engine.
on
demonstrations, the
company
similar
they
has been visited,
sici of in
directions
Many
and
to
to the Comet IV from In addition to hent, the reactor
The company produced a were subjected to a neutron
soy, by more than 1,000 ship London to Cairo, and an atom- ulso gives off an intense gamma rangu DX radiation-resistant flux,
owners, marine superintendents, powered roconaissance machine radiation which in extremely technical lubricating and hydraulic oils
could stay aloft for months at a dangerous to houlth, and so the and naval experts
tima. KSKAMEL Bn greases to meet the current
provision of suitable shidding officers from
all the feading CCRīDeaik J ES [le@N, Get я капу
coday! Twa sizes qvailable and futULTU requirements or materials, including a variety of
shipping nations in Europe to
On a cost basis, nuclear fuel presents the designer's biggest nuclear power stations.
well as from the United States, Will 2000
biggest headache. Even the most compete with con Canada
ventional Under
Influence the
of
and Japan.
materials, but the optimistic estimates show that officials
have radiation, molecules can absorb
visited Britain capital value of the atom aircraft some 30 tons of shielding may be Jorge amounts of energy, As
solely to see this new radar, will be high because is operator needed to protect the crew of a result the molecules become
the company claim,
will be buying possibly ten the atom aircraft, in chemical terms, 'exclted and,
With Ulla
years fuel supply as the ne now. system, radar screen
time. On the other hand, there depending upon their structure,
actually portrays will be so little to wear out in ean break down into highly
all moving objects, including the nuclear part of the engine reactive fragments.
"own ship", moving in their In the case of
correct direcion and spoed in- high
these ventional high quality petroleum which quality lubricants
no others must be capable of with- spoeds relative only to those of practically lubricanta rapidly darkened in change in physkal properties at standing high temperatures for "own ship"
and colour
increased in radiation
as with conven- doeages which trans- lang periods since it may betional marine radar. Also, frue- viscosity with increasing fo normal lubricants into possible to renew them only at motion radar dosages of radiation,
Folds,
shows stationary intervals of several years; and objects such They eventually become
in certain types of reactor the vessels and land, to be stationary. as buoys, monted
By contrast with these con- Into transformed
jelly-uke
lubricant must be compatible while on the conventional radar
venfloral giants, which may masses with melting points in
with the hot coolant, eg, carbon screen these appear to be mov-reactor. In it, the splitting up kerosene in a single flight, the The heart of the engine is the burn anything up to 20 tons of excess of 200 degC" which were
dioxide under high pressure.
of the atomic ouetel must be atom aircraft's mere half onc Jargely insoluble in petroleum Other properties are also re- As a result of Intensive re- The first three ships to be controlled so that energy is consumption will mean that 129 spirit, eyelo-hexane, benzene, quired in the lubricants for soarch, lubricants "have been led with production modeis released in the form of steady undercarriage will have to be February 1953. a pro- Similar acetona
and ether, nuclear power stations; these developed which meet these re- of true motion radar cffects were observed which may come in contact with quirements, and work is con-
are now heat, instead of the uncontrolled specially stressed gramme was started at Shell's with some
to withstand at sca. They are the British flash of the atom bomb. This is Thornton Research
synthetic Centre, in and silicones.
diesters the coolant gas of the reactor tinuing at Thornton Resourch mv Dartwood, the Norwegian done by means of control rods, ings.
the shock of full-weight land- collaboration with the
must have an extremely Atomic
low Centre to provide lubricants for my Astrea and the French tas made of a material which Energy Research Establishment Already at Thornton lubri- vapour pressure to prevent the the nuclear projects of the Antilles Decea
These are some of the prob→ Radar
Ltd., absorbs neutrons and thus slows tems now facing Britain's project have been developed contamination of the reactor; future.
Brixton Road, London, England. the lesion chain. These are teams but already they report
#t
NOW AVAILABLE "Hongkong In fragments can then combine its geographical setung" by 3. 0. with neighbouring molecules to Davis, Price $20. Obtainable "S. C. M. Poxi" ofees
torro
compounds 01 higher Homojecular weight, as shown by kond and Kowloon,
significant increases in viscosily of the irradiated material which may even became solid,
STAMPS
STAMP ALBUM, "Collection Bulider" actica. New Block BW available.
Fium South Chine Morning Posi Lto. Wyndham Street and Salsbury Road, Kowloon.
SOMETHING EXCLUSIVE, Collee La packets of anobried ata From 20 cents per packel upward. All entirely nów berles. South China Morning Post Lau. Wyndham Street, Hongkong and Salisbury Road, Kowloon.
To ADVERTISERS
L
In
The Effects
On
at Harwell,
the effect of canta alomic radition on various types of lubricants. Since then A radiation laboratory has been. bullt at Thorton where a Cobalt 60 source providing in- BUNDAY POST-HERALD | lense gamina radiation has been Space for commercial Installed. advertising should ba Some lubricants r
a nuclear booked hot later thast
power plant will be exposed to neutrons as well as to gamma
nooh on Wednbeďkya.
For the gOUTH CHINA rays. In the experiments done
a
MORNING POST and the
in collaboration with Harwell
inserted into CHINA MAIL, 48 hours Samples were before date of publication, nuclear reactor where They
Spela
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and Cassinet Advertise mente su usual.
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Importers, Exporters and General Merchants
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RECORDER
Gmul
This instrument uses pencil type gelyuiernetes elements similar to those used In galvanometer recorders Previously designed At ARL recording Is on 38 mm, flim Strip which runs through at in., 1, 2 in, 4 in, and 8 in, per acconj and 15 cassette loadieri.
The optical system, is designed to produce extremely Aine recorded traces on the film analysis which are capable of
to ΑΠ accuracy comparable
with normal laboratory type galvanometer recorders, The instrument was developed for recording the performance of rudio controlled ship models and weigh only 6 lbs. It la slightly smaller than a building brick. LPS.
ethanol
show
Alco Required
MANDRAKE THE MAGICIAN
WHY THE YES, A HOODLUM SCOWL, CHIEF?) NAMED TUB, HES) HEADACHE? BEHIND HALF THE LAWLESSNESS IN
THIS TOWN--
FERDINAND
NANCY
HI, MR. GREEN--- WANT A PIECE OF BUBBLE
GUM ?
SAILS:
P&O
R.M.S. "CANTON"
NOTICE TO PASSENGERS
Wednesday, 6th June, at 12.00 Noon for the "ÚNITED KINGDOM, via Singapore, Perang, Colombo, Aden and Port Saki.
Passengers are requested to send ALL BAGGAGE 40 the Hongkong, & Kowloon Wharf Co.'s Godown No. 2 GATE, CANTON ROAD ENTRANCE, by Noon on Tuesday, 4th June,
SPECIAL NOTE: With the exception of hand packagos
the Wharf Cols Godown for loading on board by ship's slings only.
EMBARKATION: Passengers should embark between 9.30 and 11.00 a.m. on 5th June, 1957.
Subject to alteration with or without notice
JOHNNY HAZARD
BAGGAGE:
WHAT'S NO EVIDENCE, AIR- STOPPING | TIGHT ALIBIS, AND YOU?
HE NEVER DOES THE BAME THING TWICE-
FRYINGINEBLE
TUB LOOKS STUPID. BUT HEB CLEVER--HEZ BOSS OF A BAD MOB. WE'VE PICKED UP SOME OF HIS BOYS --NEVER HIPAA---
NO, THANKS--
I'VE GOT A PIECE IN MY MOUTH RIGHT NOW
AW, I DON'T
BELIEVE YOU
HE'S RELEASED
WE'VE
MY SISTER ELLENZ
WONZ
carried by passengers themselves, ALL BAGGAGE must pa
through
PPP
#HO
ing.
By Lee Faik and Phil Davis
IVE GOT TO GET READY FOR A CHARITY SHOW-- CHIEF, DON'T WORRY ABOUT TUB-SOONER OR LATER, ALL, CROOKS MAKE, A FALSE STEP.
TOMORROW! TUB
By Mik
By Erale Bushmiller
ERNIEN BUTHMULLERES
By Frank Robbins
$IS!
**TREVI
This fixas its minimum size at cather that it might well be transferred upwards of 100 tona,
now airframe when the old larger than the present Briennia handling of such concentrated will probably be less than fult one become obsolete. But the and Comet, although its payload power has
posed some formid- theirs because of the weight of able engineering problems.
shielding it will have to carry,
There's More than Magic in
FRY'S 4
FAVOURITES
They Delicious
are
CUTEX
LIPSTICK IN THE
LATEST
SHADES,
ROWNTREES
YORK
** CHOCOLATEU
MAST
A FAMOUS
NAME IN CHOCOLATE
...this situation
calls for
San Miguel
encouraging progress. The fact that each large supersohle trans- port will need perhaps, threa times the total power output of Calder Hall only shows magnitudo of the task.
the
Mail Notices
The latarb timos of pasting howtow 'ure. thong KÖY M registered perrespondence postad at G.P.0, Hongkong. The later porting man "elsawhere' which, general, are earlier than the in general, are, earlier than the G... times can be ascertained by enquiry at the local office,
The Latest posting times for registered articles are generally one hour earlier than the times shown below. Particulars regard ing parcel malls can be ascer tained by enquiry at any post. emce.
MONDAT, JUNG 3 By Air
Pakistan, Middle East, Great Isl tnin, Europe, 3 p.
Korea,
Macao,
..
p.in.
By Surface
TUESDAY, JUNE 4
By Als
Pekling. Shatinal, Kunming, Hame
kow, Holhow 7,
Thallal
Cambodia, 90.m
Indie, & a.m.
Philippines, & D..
logo-10, Fruto, & 31.03.
Australia, New Zealand, a p.m.
Guam Hawali, V.B.,
Malaya, Indonesia,
p.m.
Middle East, Atelia, Great Britaks
de Europe p..
Japan, & p..
Cicada, pot
Hawall, U.B.A0 p.m.
By Aurface
China, People's Republie, 7 .. Japeo, U.S.A., C. & B, Azaro 10 0.0
Indo-China, Noon..
Mago, 1 p.
Malaya Ceylon, Aden, Genat Site tam, & Europe, Beg, & Fikron, O 1.1.
Malaya, Ceylon, Adon, Great Bet tain, & Europe, Ord. & Packets,
D. (0/0/07)."
Macho, p..
WEDNESDAY, JUNE 6
China, Peppa's Hopsalu, 7 s... Malaya, Ceylon, Aden, Great Beke
rope, 9 ́a.m.
tain, &
'mi'd y fomoUS
Australia, New Zealand, & p.m. Maono,
m.
THURSDAY, JUNE •
By Hurtace China, People Reptibile, 7 =.00% Philippaice, Noo
Ma 2 p.m.
Malayu, Jump.m Worth Borneo,- 4.9.m. Macao, & p.m.
FRIDAY, “JUNË Z
By. Berface
Czink People's Depublic, ↑ Japan, 11 A.KO,
pokladen, Wilmond, 9.9.10.
SATURDAY, Sumi a
J