1947-02-22 — Page 9

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THE HONGKONG TELEGRAPH, SATURDAY, FEBRUARY 22, 1947.

SCIENCE STRIPS

... So they put blinkers on the bats

AN, you nent a bat oqueak 7” That's an old question. Some people can hear the bat's communicating call. although its wavelength is right at the top of the range But we now know that the bat also transmita the human ear.

even tugber-pitched waves "supersonls waves tint 15-inster tan sound. The discovery has explained an age-old mystery, and pul science n stride forward into the future,

Luts can fly in complote darkness without bumping into oustnales. showt In experiments fine wires have been stretched room in which bath-bilndfolded with some substance like paraffin wax-were turned toore. They dow around without evet touching a wire.

ACT

Scientists have answered the riddle, Bata transmit super waves from their pointed noses. These waves are reflected Obstnelen in the bat's path, and their echo is picked up tho The nearer ears. bat's the

trumpet-ke Altin by

bstacle, the stronger the echo. That is now the rat loentes I in believed that which it feeds, :he dying threets on they can identify different insects by the ispo of echo they get back.

THE

"SCREEN WIÃO E

OF THE WEECK

SECRETS OF THE OCEAN DED

8 lt echt in al doing used fot mapping the sea-bottoni. scien The Admiralty-and

taking expeditions — are

•oundings with an accuracy never known belore.

with

uver.

with

The days of taking the depth weighted line are now located Wrecks can be

БРА necuracy. complete travel will be safer because stips will have warning of newly formes *andbanks and dangerous reef

It's Fun Finding Out

(Centinued from Page 5)

BESIDES his four attacks of pacu

monia he's had gastro-enteritis and appendicitis (1922), tonsilitis

ent (1020), and paratyphold after

at Salzburg (1932). 3 oysters He also had skin trouble, eye trou-

T

URING the

war

Dlearned to apply

men ttio

that bat have used for million of years. British acientists per fected a submarino detector- the ecto-re-order.

Bent Supersonic waves were

The sub- down into the water. marine reflected them back, and tho echo revealed the presence of the submarine on a visible Depth chargen could be Aercen dropped with great necurney.

Previous submarine detectors were defeated when sub- marine shut off its engines. Eur the echo shows submarines tha lio silently on 10 sea-bottom

A NEW ERA OF

RAILWAY SAFETY

THE supersonic echo principle nus now produced a re markable device for detecting flaws and cracks in metal, Previously expensive X-rays were used and the results were uncertain. The supersonis detector-looking like a tele vision set with a huge stethoscope attached-will And n crack The rail 1/100.000th of an inch wide through 201 af metal. Wayr are using it to test axles.

Ina. been proved experimentaky possible to transmit supersonic waves along the rallway lines from a crystal trans mitler Atted to the travelling train. A crystal pick-up on So I will be impos another train could receive the Biяnals.

same

sible for two trains to approach each other on the Hoe without being automatically stopped as danger distance.

by CHAPMAN

PINCHER

drown by Bernard Venables

STAND BY-

WE'RE OVER A

SHOAL OF COD

TOW

N

fishermen

arc

echo

ESIME

to

tha supersonic loente the presence DI fish. Tho waves are reflected from the shoals of berrlug or cod.

relig and the

is triti lated on the bridge of the shy into

Ko thic visible

Image. rawlormen know exactly when to shoot their nets and the size o catch to expect.

11

I have been shown the Navy and trawlermen's echo-sounding school and can ace that long voyages for small eniches will soon be avoided. Already the Orionby triwlemmen are reporting larger hauls and a great saving of time and fuck

THAT LONCÒN HALLU 13 OFFICE? CAN YOU MIET

ME FROM THRS TRAIN?

* asing this same method telephones could be installed in trains. The U.P.O. nus opposed radio telephones-through inck of available wavelengths. But

Waves supersonic

could carry the message through the ines and the vibrations could be picked up at stations and plugged Into the ordinary telephone circuits. Travellers could make personal calls and engine-drivers could keep in Louch with the signal-boxes

bie and lung trouble: du. chills, he was knocked down by a taxi in cold and sea sickness.

He was in an airplane that ran

inte a ditch taking vir from Paris

(1919),, in the same room in which 4.2 shell burst in Flanders (1910). and in London during the blitz.

He's had car recidents in White- hall, Cafro and Kent and in 1931

New York.

When people tried to be sorry for

him on that occasion he said, in

so well

those tones we all know from the radio: "Live dangerously. things as they come. Dresd naught. All will be well."

Take

The old buccancer.

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.:

BRITISH SCIENTIST

FOR CHINA

Appointed Director of the Bri- tish Council's Science Office in China, Dr Ronald Alfred Silow, British scientist who specialises in plant breeding and genetics, expects to sail shortly from Dri- tain, accompanied by his wife,

Dr Silow has exchanged informa- tion by correspondence for several years with leading Chinese scientists whom he now hopes to meet person- ally. He will carry with him many new

scientific books and recent papers which he hopes will interest his new colleagues.

Dr Silow's duties in China wil be to act as liaison officer between Britain and China to facilitate the reciprocal interchange of scientifle information.

Dr in Londr Corn

Silow graduated as a. B.S with Arst-class honours degree

agricultural balany at Reading, in Berkshire, and became a Doctor of Science in 1944. His most recent appointment WDB when, 1945, he was Scientide Oficer of the Agricultural Research Council, altached

thr Plant Breeding Institute. School of Agri- culture, at 'Cambridge University.

to

in

When Dr Silow reaches China he hopes to extend and strengthen the Sino-British co-operation sclentiße fleld. He expects to visit! many Chinese universities and re- search institutes in the course of his work, and is looking forward many meetings and discussions with Chinese scientists.

Gordon Private's

Demob Party

to

The Freedom of York demo bilisation centre was presented. recently to 35-year-old Pte Horace John Mitchel, a Gordon Highlander, who was the 500,- 000th man to pass into Civvy Street from the centre.

Commandant of the unit, Lt-Col A. E. White, welcomed aim and everything Mitchell wanted was at This disposal, free, including a ti phone to get in touch with his wife and drinks in the officers, Bergeants or corporals messes,

A special farewell party was at- tended by Maj-Gen C. M. Smith, Acting GO.C., Northern Command who presented him with graved pewter tankard and a bottle of whisky.

an en-

The place of honour beside him at the porty was given to Corporal Festin Nobertson of Baillieston, Lanarkshire, 20,000th ATS girl to be demobbed at York. A powder compact was presented to her by the General as'n souvenir.

Abd

el Krim, Terror Of Morocco, Said Freed

Abd el Krim, one-time terror who all but drove the Spanish army from Morocco into the sea, is reported to be en route to France, re- turning from 20 years' exile in the island of Reunion in the Indian Ocean,

The veteran Rim leader, now 67 years old, white-bearded, and lame from an old. bullet wound in one leg, is said to be returning by ship to France with the full approval of the French authori- ties, to spend the rest of his days living quietly on the Riviera.

to set

Reports that he had "cpcaped" from Morocco and had returned to North Africa

the rugged Atlas Mountains afame again with a holy war against the Spaniards and French are categorically denied by all sources in Paris, says United Pread.

The former "Lion of the Atlas" is said to be old and broken and to desire nothing but to end his days without meddling in in ⚫prace politics or warfare agein,

a

to

the

of the release of Abd el News Krim

was bombshell Spanish pubile and to govemment ometala,

LIVED QUIETLY

Oficial quarters in Aldrid declined to comment, but the com- ment of the man in the street was that it was Intended to hamper Spain in maintaining order in Spanish Morocco, where Krin is sul! ulluential.

Since

Abd

the

bore a son to him. He spent most of his time there reading, working In the Karden and driving hi motor car.

that Reporta

the news of his release has come as a bombshell to Madrid caused surpise in Paris 03 Abdel Krim is regarded, as for gotten old man and it was thought

A few years hales, he moved to his the French would make

residence, the permanent unlikely

great to stir trouble witte colonnaded Castel Flueri,

up any use of him in Spanish Morocco. In any event, huge colonini-style mansion about was pointed out, the strategie six kilometres from the capital moment to have done so would have town of Saint Denis. been in 1043, after the Alled in- vasion of North Africa, when the United States and Britain were still nervous of a possible attack from Spanish Morocco.

PLEDGED HIS WORD

Since his exile to Reunion, where

From time to time, reports of his alleged escape caused a sensation particularly in Spain. The last of these reports, Inter proved faisc, was In 1930..

In actual faci, Abd el, Krim was said to have pledged his word to the French Government to serve he arrived on October 10, 1928, Abd France in the event of his ilbera- his great predecessor, el Krlin had lived in seclusion, his tion, as did

Koder, who fought the name fading to a memory to the Abd of outside world. He firat stayed at the French for years in Algeria at the Chateau Morange, where his wife end of the last century.

Nanking May Soon Get Diplomatic Section

By HAROLD K. MILKS Associated Press Staff Correspondent

China's post-war capital may soon have a diplomatie section rivalling the famous Legation Quarter of old Peking.

hig aurrender. to French at his final mountain strong- hold ef Djebel Homman in May

Not far from the new American 1026, abandoned by the just of his Embassy on the cuter edge of Nan- former army of 100.000 Maroccan King's northwestern region, three fanatics, Abd el Krim has lived

world,

Nanking's new "diplomatic zone" will bear no resemblance to Pelping's closely spaced embassies and lega quietly, almost forgotten by the wallons-all members of the British lions, now used as consulates for the home placed family-have purchased or are pur most part, in order that the respective in the white at his disposal by the French govern-chasing real estate for ute in the governments may retain their pro- construction of new embassies. pertics under an old imperial grant ment in the island of Reunion.

Others are known to be interested by which the legation section land In acquiring suitable locations for reverted to the Chinese government The decision to allow him to re-

should it cunse being used for official to have future building. was sald turn to Europe

purposes. been taken after the former i. Icader had given formal guarantees active part in not to take any pouties again.

After his

Both the Australlan and Canadian

The British government retains Rovernments have already purchased property in the hilly fringe of the its old Embassy compound near the Chinese capital, and shortly will railrend station. Years ago the Bel- start ensiruction of their respective tish purchased land for construction ESCAPED FIRING SQUAD

embassy compounds. Ometal sources of a new embarsy, but squatters who surrender.

he had said the Indian Embassy will shortly occupied the site by the score stead- begged the French to be allowed acquire land nearby dor its own pur-fastly refuse to evacuate.

Some foreign diplomats-unable to to stay in Morocco as the Spaniards poscs.

There are two factors influencing

exorbitant that he face

aaring demanded

of property by foreign solve the problem squad. But the French rushed him purchase

One is rentals and high building costs-have oft to Reunion with his wife, his governments at this time."

uncle, two the shortage of adequate housing for decided to stay away from the na- The tonal capital entirely. They live in three sons, brother, sisters, several nephews and nieces, foreign diplomatic missions. and gave him the estate of Castelether is the excessive rental charged Shanghal, valting Nanking only Fleuri us his horne.

in most cases for suitable houses.

when necessary.

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