1923-05-30 — Page 9

LEARN HOW TO DIVE.

Beneficial to Health and Symmetry.

MISS VIRGINIA FAIRE DEM- ONSTRATING THE "RACER'S PLUNGE" AND, INSETS, (1) SOM- ERBAULT, (2) SWAN DIVE, (3) BACK DIVE,

THE HONGKONG TELEGRAPH,

RADIO NOTES AND NEWS.

An Important New Discovery.

WEDNESDAY, MAY 30, 1923.

Mr. Frederick R. Ostman of Ridgewood, New Jersey, is the champion amateur of the United States. He has received the Ho- over Cup, which is awarded annually by the Department of Com. merce to the owner of America's best amateur radio station. Ostman is shown here beside his set.

Most of us know that the valve used in wireless to-day depends on a little filament of tungsten which, when made incandescent by passing a current of electricity through it, throws off a stream of electrons. A wonderful discovery bas now been made in the re- search laboratories of the General Electric Company at Schenectady, where it is found that by having trace of the metal thorium de posited on the flamsat the electrons emitted are about 130.- 000 times greater in Dumber.

.

energy can be handled with one valve of the powerful type that can now be made. The marvel- lous effect of this little impurity of thoriam cride in the filament opens up many new possibilities| in the great world of electricity.

Speech can now be efficiently transmitted by means of light over |

distance of several miles, said Professor A. O. Rankine, at the Royal Institution. Graham Bell, inventor of the telephone, was also the inventor of the photophone, by which he was able to transmit speech by light Lover & maximum distance of 700ft, Selenium, the substance us- ed. could not be relied upou to do: the same morrow as it did to-day. although more control had been secured over its properties in recent years. What they needed, concluded Profesor Rankine, was something which would respond without any

lag" in its ductivity.

con-

• Paris leads with another idea. Its taxicabs are running through the boulevards, with radio re- ceiving sets to entertain the faren Concerts are picked up from the Eiffel Tower, as well as fare is two francs higher. England and Holland. And the

The champion radio town in America is said to be Westing- 200 homes, 142, or 71 per cent. house, near Chester. Out of its have radio sets.

Meters, measuring the time during which persons are listen- ing in on a radio concert, is the suggestion coming from South America. Actual use was made New proposals were made by of such an arrangement recently the British Broadcasting Company in Belgrano, a suburb of Buenca recently to the Postmaster-Gene- Aires. ral for dealing with the difficulty of home-made wireless sets which at present cannot be licensed for

*

listening-in. Their original pro- There was an interesting.er-

盘 writer in the

Miss Virginia Brown Faize.¡the end of the board, back This discovery mesas that it posal was that owners of these periment in broadcasting at Mada the cinema actress, is convinced to the water. Spring upward, will be possible to pass vastly sets should pay £1 a year comme Lily Payling's Albert Hal of the great value to health of holding the head back, keep greater currenta through thepared with 10s. for sats made by concert, says swimming and diving. "Takeling the back arcbed. Keep the valve, and even to use it for the firms affiliated to the BBC. Anow how tinny is the tons of a

the springboard route to health and symmetry." is her advice.

arms fully extended beyond the huge currents employed head until after the water is en-electrical engineering. A valve tered.

which will actually deal with a thousand kilowatte over $300 horse power-has recently, been tested with success.

SWAN DIVE

"I wish I could impress upon every non-aquatic girl in the the joy, satisfaction, country health and beauty that come from

"The swan dive is beautiful. swimming sad diving," she says. From & run the takeoff is made "Everyone who lives within from both feet. The spring commuting distance of a swim- should be upward rather than ming tank should use it. Parti- | outward. cularly do I believe women should learn how to swim and dive so

that as soon as the weather per- mits they will be able to enjoy

the natural water facilities."

r

Here are four "arieties of dive she particularly recoinmands:

RACING PLUNGE.

"The racing plunge is wonder. fal exercise. It should be taken

London Observer. "Listeners-in"

instatement issued by the company

says:-"The board of the British Piano, heard by wireless, and how Broadcasting Company consider ill it consorts, as a rule, with the that their consent to the Post voice. After singing her birt Office proposal for the issue of a

aria at the Hall, Madame Payling, constructor's license was a con- whence her performance of Saint- went on to Marconi House, siderable concession on their part Saens's Mon coeur s'ouvre & ta ic view of their definite agree- ment with the Post Office, as a Voix" WBA broadcast to the third licenss would involve the audience she had left. Here Mr. diversion of a great deal of trade Stanan Jefferies accompanied the voice as it came from a triple- from those who made broadcast- ing possible and popular. They horn loud-speaker. The effect do not consider that the protection was exceedingly good, the volume which was promised to them, and of vocal tone being about half as in consequence of which they great again as when we first heard launched out into a large expendi. the singer. A few weaknesses-c- ture. has been given."

casional "scooping" in the attack of a high note, and a too consistent veiling of the tone-ware mag- nified, too; but Madame Payling's

This great advance in the power of the valve comes from a slight film of thorium oxide on As you lift the body, the arms the tungsten filament, a film only should be placed in position at single atom in thickness-about right angles to the body and held hundred-millionth of an iach. Yet this infinitesimal coating of outstretched for an appreciable thorium increases by over the hands must be together, time. Upon entering the water. hundred thousand

times the the body arched and the 'lege Power to emit electrons! held straight with the pointed,

.. SOMERSAULT.

toes

It is a remarkable discovery, and electricians do not know yeti at a point near water level. The

to what it will lead, but it will object is to swim along the sur- Fat the somersault, the take simplify immediately one press face of the water without wet-off is the same as in the swan dive. ing problem of the engineer-the ting the back...

The legs

are beld straight, transmission of electric Dower the turn is made by dropping the over long distances. It will be pos- chin eharply to the chest and the sible to generate alternating cur- entry is made feet first, when there, send it in the form of direct back is arched. The arms should head is thrust backward and the current over long distances, and be held with the elbows sharply bent and be finger tips on the shoulders.

Take a full breath, lean to ward the water while swinging arms behind. Swing well out and over the head and spring of pushing from the end of the sprin.board. Do not lift the head from between the arms.

the

BACK DIVE

"These four exercises," Miss Faire concludes, "are unequalled on for symmetrical development."

For the back dive stand on

balls of the feel

נ'

con-

Listening-in is proving as anfall, velvety voice has suspected boon to householders siderable beauty. Her readings who desire the blessing of quie-would tell more if she could tude. It has been noticed, writes infuse greater vitality into her home correspondent, that some singing, and see, deeper into the suburban families who formerly were particularly noisy with music in the evenings have now got a broadcasting instal-

music.

then reconvert it with the valve lation, with the result that of the Western Union Company into alternating current, in which there is silence during the listen for 1922, Mr. Newton Carlton, the Speaking of the income account

Its value in long distance wireless greatly relished by next-door decline in ocean cable revenues form it can be easily dealt with. ing.in period.

This has been President, says may be gathered from the fact neighbours, and is welcomed, too reflecting the condition of foreign that, while 200 kilowatts of energy by elderly family people, who commerce

There is, a

and the

effect

is used today for trans-Atlantic fod their young folks occupied of wireless competition at low work, five, times this amount of with quiet amusement.

rates." He goes on to say, "The radio has made substantial pro- gress during the year, not only in improved service, bat in captur- ing additional business with low rates from the cable com- panies. The advantages tili lie with the cables, but they Deed waking up. The cable art has not advanced as it might

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ELECTRICAL DEPARTMENT.

THE

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have advanced and as it must adTHE HUMAN ZOO

vance under the stimulus of the cheaper means of communication, Radio rates between the Unites States and Europe are about 30 per cent, less than the cable rates, and principally because of their lower rates, the radio has captur. ed 20 per cent, of the United States European business.”

Secret processes are. receiving the attention of men whose duty) it is to keep Britain anfe against Fair attack. The power to attack ja Krowing yearly and means of defence bave to be planned, thought out and arranged: Al- though it is not permissible to tell of all that is being done, grosti use is likely to be made of the forces which are bound up with the miracles of wireless. Those forces, which make it possible for "listeners-in", to haar songs and music hundreds of miles away, hold vast potenijalities for dealing with the many problems of avia- tion. Far-reaching discoveries have already been made, and ati}]} the search goes on: Scientists are convinced that no long as there are wars between nations, those wireless forces will play an eTer increasing part, for they open wast field of opportunity in de- Seppo-and attack

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Copyright 1823| Pubile Ledger Oo