i While By ELMO SCOTT WATSON OING to the movies while sitting at home! Doesn't sound possible, it? It not only is possible, but, judging from a dem- onstration made in East Pittsburgh, Pa., recent- ly, that seeming miracle may soon become one of the of our Recently there g: evision laboratory house does commonplaces the tel- Electric ant company a mong them Radio Corporation National Broa General Eleetrie ghouse group represer Sots abe Uldasiil Westin i tion pictures which a station nearby radio waves, ceiver in the laboratory duced before their world's first demon from tted up on a re and repro eyes. It «tration of radio the most ind advances in the sci during the broadens and transn picked on were was the movies and possibly of the many ence of radio announced past year. While radio laboratory cials, under whose auspl nstration was made, declare that the event heralds the day when the radio listener will sit at home an most popular form of entertainment, motion Metures, projected by his indi- vidual rad ving set The devalomuer of radi a triumph of scientific During the last sum to the mind of Dr. Frank charge of this branch of hi activit and the fact two months he brought the device to the laboratory stage In the degree of perfection witnessed at the recent dem onstration, is said to have set a rec ord. Radio movies are a step beyond previous developments in and required the invention of a num ber of appliances in addition to a great deal of scientific ealeulation synchronisin of various high-speed mechanisms, and accurate control light and radio waves. Although the sending tures by radio, as may well be imag ined. required many complicated and delicate pieces of apparatus, the prin ciples of the art as explained by West Inzhouse engineers, are not beyond ordinary comprehension. Photography in its simplest form consists of the re producing of spots of light and shad ow in the same arrangement as they appear in the subject photographed The screening of a motion picture of eourse, requires that a roll of film be operated at a speed which sends sixteen pictures a second before a projecting beam of light lecause of the structure of the human eye, if a geries of pictures follow each other at the rate of sixteen or more per second, the human eye sees It as a single mov- ing picture, All this the broadcasting of radio movies requires, with the addition that the spots of light must be trans formed inte frequencies, some of which are in the audible range, trans ferred to a radio wave and broadeast na electrical energy. In receiving the pictures, the process Is reversed, the electrical energy is picked up, and the frequencies returned to lights and shadows, which when viewed presents the radio movie. In the first step of the process a pencil of light traverses each picture, aston ing still the m Oo in ouse the dem. movies are Westingh » stage, ©8 d have that recel 0 movies is engineering idea came Conrad, In 8 company’s that In barely mer, the jes television of of moving pic CENTRE HALL. PA. itlin 1. The heart of the television mo tion picture transmitter. The scan the: motion picture film. Above the scanning disc may be seen the syn. turning at a predetermined speed. engineer, Westinghouse Electric and of the television motion picture pro. jector. The scanning disc of the ap- paratus is immediately in front of him - or “frame, rd of as It is called, at the rate sixty times a sixteenth of a second This process produces a sixty-line ple ture, as clear as the usual newspaper Hiustration. The pencil by a scanner which with a series of minute holes near its rim. The is so arranged that all light is exclud ed from the film except that which goes through the square holes. The disc turns very fast, and as it turns the of light across each frame.” with the result that an indi vidual! beam of light touches every part of “frame.” The beam of light passing through the film falls upon an electric eye or photo-electric cell, which {# not unlike an oversized Incandescent lamp. With in the cell, however, is a metal whose electrical resistance varies with the light falling on It. Caeseum, a rare is used In the Westinghouse The amount of light falling on cell determines the amonnt of passing through it. The re sult is that each Individual beam of light sends an electrical impulse which varies directly according to the amount of light or shade in the film through which it passed. The beams of light have now be. come electrical impulses and are sent on to the broadeasting station. Here the heams assume definite and varied frequencies, some of which are audi ble. Doctor Conrad states that these frequencies range from somewhere near 500 to approximately 60.000. Since the human ear is limited to frequen cies of approximately 15.000, much of the radio movie wave Is Inaudible, + At the broadcasting station these frequencies are transposed on a radio wave and transmitted exactly as the ordinary music or voice. The radio signals now can be sent across a room, or across the continent. Their dis tance range Is limited only by the broadcasting station's equipment. In the Westinghouse demonstration, the signals traversed a distance of about of uced aise square dis passes beam the metal cell, this current conirod » many Y the Nes More pov arc lamp ired to where the wenk be radio tube, rent on the grid of the the action of the more powerful Thus the mercury bright or dim changes, and its light at is in proportion te the lig! electrie eye in the To return the dots of original pattern, or scanner is may comp the tion of radio cur tube i Frogs and cont independent piate current. arc as fase as lamp goes the current any instant it that the ant their eee same inst light to another revolving nlsn which is iar the transmitting scanner The use of a mercury arc lamp per mits the radio pictures to be thrown upot a ground glass first time this has been done with tel evision apparatus dige used tens £1] or screen, the loth these scanning discs turn at exactly the same speed; in the receiving dise must be exactly in the same relative position responding hole in the dise. In other words, synchronized. the hole as the cor transmitting they must be Westinghouse engineers first to develop a feasible method synchronism, and their method by means of radio. From transmit ting equipment, whic in the broadcasting station, they trans mit a constant frequency wave of 5. 000 cycles. This wave Is produced by a tuning fork and transmitted over a special carrier wave from the broad casting etatlon. The constant fre quency note Is received on a special recelver and by means of special ap paratus controls the speed of syn chronous motors, which drive the scanning discs of both transmitting and receiving radio movie equipment. This revolutionary method of control ling equipment Indicates, In a meas ure, the extent to which sclence must go In order to perfect television or radio movies, But the developments in radio dur Ing the past year, and especially this [atest word “impossible” is rapidly being written out of the vocabulary of American electrical engineering genius, and that radio movies for all care to enjoy them fact, the of was were are an assured Give Her a Radiovisor Rgdio movies will be received In thousands of homes next winter, Thousands of amateurs and radio en thusiasts will build their own radio vision receivers and early this fall ready-made radiovisors will come on the market. Radiovisors will be the novel and really smart Christmas gift this year. These are the predictions of those beliind the scenes In radio experimentation, Although only three radio stations are regularly broadeasting radiovision or radiomovies, at least seven more are experimenting or testing and In. stalling radio transmitters, The fall months will see this number Increased rapidly. At present most of the radlomovies are in pajomime only, but increase in “pleture quality” will come with ex- perience and perfection of transmit. ting methods. The recent assignment by the federal radio commission of new and wide bands of short waves for radiovision will spur on the de velopment.—S8cience Service, California’s Flowers Some of the wildflowers of Call fornia are: Annuals, California pop py. blazing star, baby blue eyes, white daisy, blue lupine, Clarkea elegans and wild Canterbury bells; perennials, Indian paint brush, scarlet larkspur, pride of California, scarlet honey. suckle, California fuchsia and white evening primrose, ¥ Building Town to Have Novel | | Now a new kind of town Invented. The first one is being at Radburn, N. J. for 600 families will have its In the rear. path will each. Each own Individual From each lead to a parkway. parkway will be a city block and about half a mile in Primarily the parkway will but In each parkway courts, grounds, a center, of th center house garden garden a Fach length, be park will be school space, tennis play; and a community The cultural life e GOO families of each unit will own parkway. Eu by their reach sthaded be as having about ery child walking along tree if the d mile, cian school paths and, much as half a fo cross The the even stance hout road. id company” powerful he wit automobile “limited practical through which which will the perplexities in troduced into city life by the automo bile age of today. It limits dividends its to 6 per cent. Through es possibl ¥ building hun a time it he 6 per cent and yet ns not any divider is tool, built and towns can solve stock houses at 18 heen to de- home regi spe ula profit but to home for provide generously t life and community well. One novel feat: is that sireets be u Brick Venecering Held as Good Construction un over generally Aroun small pr or any bricks are Mikely 1 a8 a "soldier the bricks is known In thi on end, ngth exposed, ers in a stiff row. There a great many bonds for e laying up of solid brick walls, but of them are not applic to brick veneer construction because the narrowness of the brick walls makes it to break the brick to most of the Ss course with the 80 many are stood like soldi are h most cable veneer necessary carry out the bonds, designs of Brick’s Value Appreciated while the ancients knew how brick structurally and left mendable examples of their skill, they were handicapped In achieving the beautiful effects possible today be the wide range of and textures as manufactured now were pot then available It Is gratifying fo com- colors to know that our rest of the world in providing this versatile material In such a variety of textures. And that the thoroughly appreciative architect is way of artistic effects Is evidenced by Country Life True liberty, Independence, the such amplitude as in the coun- where life and simple; where children are brought up in a the love of honest toll and thrift are cultivated; where “the alr purer, Tod heaven closer, and I'Ouest. Progress and Taxation It we are to enjoy “real” tax re- duction, It is not necessary to cut out progress and needed improvements, but it is necessary to cut out non- essentials, experim'nts and political hobbles which add to the overhead of government withont giving added ad. vantages comparable with their cost, Exchange. Worth Remembering The resale value of the home made attractive by a well-thought-out creased. Discussion Went On, “Sleep,” sald the pessimist, “is but a foretaste of death-—that divine nepenthe for which we poor mortals yearn” “Sleep,” said the chemist, “is caused accumulation of toxins that activity must be suspended helr elimination change.” the mandragora ¥ such an all organie or minimized pending through chemical “Sleep!” said “Ah, poppy the drowsy “Sleep,” fervently, and all poet, and sirups— the good sald man, “if honrs of old desk business solid eight vw up at the fighting ph isopl ’ I ean get a shoy cock ! er, “is a feeling like a “Sleep,” er sald the phenomenon The wise man sat sald nothing He was taking a little nap.—Los Angeles Times. eh in the corner and Constipated Since : Childhood; In Fine Shape Now |: “I just telling you of wor ful medi cine, Milks Emu I have been con- stipated as long as 1 can remember, Had Wphold fever when I was eight old and the bow noved freely, nl Its, eastor oil, couldn't resist any longer your since and ev a person could think of, “Now, w ever I hear they are constipated I imms 1 on, 1 , hot them of Mi 12 1 abhont lasres cakes to an i original sug Juice remaining ugar rap, Juice Turkey Takes Census Turke ¥. cen. ints. Of this § SO 1AM ive in 5 Turkey and 12.615,060 Turkey in Disposing of Them Buddy's grandfather Ing about his fi o of the corn “1t looks ax If we going to bumper crop year,” Buddy was delighted. he shouted, to the auto taik dition re this 1d been rm the con crop. have =a he stated. “Oh, Grampy I” “will you sell the bumpers factories?’ Physician's First Duty For the physician there is only one rule: Put yourself in the patient's place.—~Lord Lister, An expedition has sailed from New York to dredge the ocean bottom in the region of the Azores, seeking the supposedly lost continent of Atlantis QUALITY FOOD PRODUCTS set the standard. If you paid a dollar & pound you could not buy better food products than those you find packed uader the Monarch label. Reid, Murdoch & Co. Established 1853 General Offices, Chicago, Ill. ATTENTION! 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Robland's Styptic Cotten, 25a CITY TOET BATH SHAMPOO Seasonable Definitions Nerve—~Asking a mun just from vacation to lend you ten. Miracle—Having him do it. Roasted “After all,” writes a correspondent, “there are worse things than being hard boiled.” Halfbaked, for instance, To Cool a Burn Use Hanford’s Balsam of Myrch Money back for firet bottle if not enited. AY Senders. W. N. U, BALTIMORE, NO. 39-9928 of time, and cutting A or color. and in each pany,
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