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THE HONGKONG TELEGRAPH,
f1
RADIO NOTES AND NEWS.
SATURDAY, SEPTEMBER 15, 1923.
New Instrument Tells Range of Audibility.
Charles Erbstein, noted Chicago criminal lawyer, shown, here, may well be said, to have one of the most perfectly equipped stations in the country. In fact, it is a regularly licensed broadcasting station, from which Erbstein sends out concerts of his own devising. The interior of his studio is said to be one of the most artistic and handsomely furnished in the country...
BASEBALL POINTS.
More Questions Answered.
'QUESTIONS. One-Hesa pitcher the right to get on the rubber without having the ball in 'bis possession Pathan Two-If a pitcher step toward first base, and discovers that the runner has such a lead toward second that he has no chance to get him, cup he throw the ball to second ahead of the runner
Three-Has the base umpira the right to call a bulk on tho pitcher or is that right confined to the umpire-in chief?
Four If a batted ball strikes the third base sack on the extreme corner, which is extending into foul territory because the bag has been loosely strapped, is it fair or foul 7
Five-If a batsman steps into a. ball, which the umpira ia positive would be a strike had he not done so, and the ball rolls to the stand. would a runner on third have the right to score if he could do so?
ANSWERS.
ཏཎྜ༎
One--The pitcher has no right on the rubber without having the In .80 ball in his possession. doing he commits a balk.
Two-When a pitcher steps toward first he must go through with the motion or he makes a halk. Throwing "the "ball to second would be a balk and the
Three- What is impossible for the hu- ment of today. Radio, with its runner would be entitled to the man car to perceive," or the cyodotection of the finest wave base even if caught.
to discern, radio will divulge. · lengths and frequencies, could The rules now give the base This direct statement is made easily be a means toward the umpire the right to call a balk.
Four-It is a fair ball if it on the report by Western Elec-accomplishment of such a feat.
tric scientists that they have per-¡ It is not difficult to perceive of a strikes the bag. It is the duty of! fected an instrument which mea-radio instrument also which could the umpires to see that the bag sures a person's hearing to the detect the faintest sound and dis. is property strapped and always slightest possible degree. And to cern the slightest ray of light-within the limits of fair territory Five The umpire should rule this is added the further advance both out of the range of human ment in this science toward the discernment of sound waves un- aware to man."
ท
"The audiometer is the instru- pent which has been set up to measure the audibility of a person. The sensitivity of a normal ear includes 300,000 pure sounds of
ear and eye. Out of this could the pitch a strike, but suspend come rescue apparatus forentem- play when it hit the batter and bod miners, life-saving equipment allow no runners to advance... and such serviceable means for saving lives quickly.
Pay-Radio-Phone.
PROFITS FROM SWAMPS.
HALL'S DISTEMPER varying degree, the experimen- the long-heralded pay station for Scent from Boronia Blossoms.
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tere say. Having ascertained this number, the scientists can determine the degree of deafness of a person by the number of sounds within the normal range which he cannot hear. This they can do with the use of the audio:netor.
Actual practical installation of radio has finally been begun in "Paris. Cafes, hotels and other public places have these sits with earphones, through which a broadcast concert, can be beard after a coin is dropped."
Powerful Tubes.
Ta derive from swamps one of the most fragrant perfumes is probably about the last thing to be what is now being done in Aus expected, yet it is, nevertheless, tralia. And it is because what has now become practically, an accomplished fact in the Antipo "The Atlantio ner Leviathan des is well worth noting in Malaya has two of the most powerful (saye a Borngo paper), where large vacuum tubes employed in radio areas of swampy land await con- transmission. They have a capa-version to some useful purpose, city of 10,000 watts each and have that attention is invited to i power enough to span the Atlantic. Perfumiers finding that the blos som of the shrub known to bota- Radio Link Abolished,
nists as "Boronia" gives off the The only commercial radio link most delightful-fragrance, recent- between the United States and y experimented with a view to Catalina Island, off the California utilising it on a large scale in the coast, has been replaced. by a trade.
The the direct submarine cable.
This instrument consists of vaccuum tubes, coils and ad justable resistances. By a pro per arrangement of circuits the vacuum tube can generate an oscillating current of varying frequencies. This is transferred into sound vibrations by means of a telephone receiver and those vibrations that a person says he can hear are noted, while the lightest step outside the subject's audibility is registered on audiometer, e
Underground Wireless.
श
леч
AS
Success attending the initial stations used for radio purposes efforts, certain swampy areas in Thus, it is maintained, the au- will be confined to ship-to-shore Western Australia, where the shrub flourishes, were explored, diometer, will come into the radio and general broadcasting.
with results so satisfactory that practical use in court cases, where
Messrs. Plaimar, Limited, of a person's degree of deafness is in
Perth, set about the develop question. Laws involving human
Some very interesting wireless
industry ment of a hearing also could be designed
using Bornia blossom with greater accuracy, since experiments have recently been physicians could specify exact carried out by Messrs. A. Franke, the raw material, and several degrees of bearing required in Ltd., of Manchester and Bolton, months ago succeeded in produc- certain instances, through the use. in co-operation with the Wigan ing a quantity of concrete attar Coel and Iron Co., in their mines from the blossom on a semi- of the audiometer.
commercial scale, and samples! Similar to this instrument, it is at West Loigh..
A few turns of wire were
of it sent to the United Kingdom expected, radio will be the key toward the invention and perfec. secured to the roof of the cage wore favourably reported on by tion of a sign registering appara and the receiving sets earthed firms interested in the perfumery direct to the, handrails... Under
industry. It appears that tus. Thus the distance a person can see, and the accuracy of his these very unfavourable cond-Boronia for years has flourished eyes could be registered incretions, the programme from the in West Australia and that the
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by botanists as Boronia Megas- tigma. It is stated that large areas in the south western, pör- tion of Westralia comprise swamps capable of producing annually many tons of the fragrant blossom,
Was
received with sufficient strength to work a loud speaker whilst at the surface of the mine. The cage was slowly lowered to about 120 ft.. at which depth music which was being trans- mitted almost disappeared.,
Proceeding lower to a depth of 24)ft, reception began to improve and continued to do so until the. full depta of 792 ft. was reached.! In this position the music was quite audible 15 ft. away from head- the set, although the phones were being used, and Luis distance would have been! cosiderably increased had a loud spasker been employed. It is proposed to carry out a further test at the company's Parsonage Pit, which is 3,000 it. deep, and it is confidently expected that sema very useful information will be gained from these experiments. Aremarkable feature of the above! lest was that no interference was experienced from the alternating current power cable which run the whole length of the shaft as a pressure of 2,000 volts...
Tel. Central No. 1871.
Copyright 28289;
Pubile Ledge
The Tough One Bay, little one, has yub any idea what time it is?" (Percy has a feeling that it's "one after
ONG."
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