Show THE SALT HAKE TRIBUNE SUNDAY MORNING TUNE '26 lest Fads from 1932 v convention r yrfi TWXprtW Radio Broadcasting Nov Becomes How the Voice Is Transmitted Over a Slender Bean? of Light From a Tiny Lamp as the Newest k ff f "I I Wl rtp M'M 'fltlypjf n i A ’M I i ’c ling the ship held the means of blast mg the program to bits it was explained The flare of the searchlight caught by the reflector of the light on the airship would have caused an intensity of bght strong enough to blow out the tube So the flashes were made almost straight into the air with the beam well away from the ship Reflection of the roof mirror could be seen playing on the sides of the ship a mile away The light intensified by mirrors and then shot through a power--’ ful lens flashed green red and yellow as the movements of the dirigible created prism effects The roof mirror was not the only spot m Schenectady to catch the lightOne of the enwave communications photo-electra had rigged up gineers Method ofSending ' Secret Messages By the Aid of an Electric Eye and a Mirror ' At ic i The Radio Transmitting Device Used In Ground Talking from the Air to the Harrow-Mill" This Over a Beam of Light the Voice Mhirh la Confined to the 1 ight Ray The Message Can Only Be Received by a Special Narrowcasting an cop of the air blew two blasts onwas police whistle The firsttransorainary for a signal the operators at the mitter to turn off the old radio station The second blast played a more important role although it generated only a millionth of a watt at the microphone in the speaker’s hand That small amount of power passed through an amplifier and down the beam of light to the laboratory where it was picked up by the electric eye and transmitted by wire to a thyratron tube such as just briefly described This marvelous thyratron then released enough power to operate switches five miles away These switches started the new radio transmitting station Thus ths minute energy of the whistle blast controls power 50 thousand million times as great Moonbeams also can be used for transmitting the voice with the aid of the electrical apparatus which has just been described The spectroscope 6hows that ths composition of light of both the sun and the moon are identical and although during a full or harvest moon it seems to be as bright as day the fact remains that the sun is 600000 tunes brighter than the moon and half a million full moons would not equal the sun’s brightness air talking with a voice from the air’’ The beam of light which carried the It voices is invisible in the daylight it picked up by the sensitive photo-electrtubes better known as “electric eyes” in the laboratory on the ground and the light waves carrying the voice are changed into the sound The accomplishment of this feat demonstrates a means of more or less called for secretive commumtion want of a better name “narrowcasting” Although the waves carrying the voice are hurled into space much tbe same as in radio broadcasting they are d confined exclusively within a beam of light and not scattered to the four corners of the globe Only with apparatus such as is installed m the laboratory can these tiny waves be transposed into sound In connection with the experiment of talking over a beam of light the engineers tried another little stunt which they worked up in the laboratory employing another of those marvels of science the thyratron tube The thyratron serves in an electrical circuit somewhat the same purpose as a trigger does in a gun — a small amount of current controls a very great volume of power An engineer in the airship acting radio traffic as a sort of ic cone-shape- 50-w- Seeds as Disease Germ Carriers D Receiver Focused on the Beam of Light carried on contribute heavily to the billion and a half dollars’ loss that American farmers suffer each year from plant diseases From intensive microscopic studies it has been discovered that there are well over 200 disease organisms which are commonly carried on farm flower or vegetable crop seeds and furthermore that practically all seeds carry one or more In fact It types of disease germs is now recognized that seeds as carrying agents of disease have been a heavy contributing factor in the n-wide distribution of certain The annual “tax” levied by plant diseases is an average of $200 per farmer according to the best estimates of the United States Department of Agriculture Agricultural experts have developed a number of varieties of plants that are resistant to certain diseases Crop ssmtation methods and crop rotation have definite places in a disease control program Chemical sprays and dusts for repelling disease attacks on plants have been developed f yrowing research workers and chemists of the Department of Agriculture state agricultural departments and chem-cAnd of great manufacturers disinfectants are now Importance available that will destroy the disease organisms which infest many vanties of seed The tremendous losses suffered by e farmers through diseases are as a rule the easiest to prevent and to control of all diseases that inLack of such control fect plants means the loss of not only a more or less high percentage of the seeds but organisms TINY electric lamp scarcely larger than one of those bulbs that burn on a Christmas tree is radio’s newest aid in carrying the human voice from airships flying at great heights to receiving stations on the ground This feat which was recently accomplished by the engineers of the General Electric Company In Schenectady New York is known as “narrowcasUng” for want of a more technical name and from it army and navy experts hope may evolve a system of communication which will surpass the secrecy of coded short wave messages The voices of the speakers in a dirigible were projected over the beams of the bulb to the mirror perched on the roof a mils away The broadcast was staccato as the reflector came out of range of the light for a second Radio instruments and a trlpoded mirror had been set up on the roof of a building Then as the airship soared high over head an operator turned the mirror slowly that the contact with the light beam might be steady and the aerial passengers talked to the engineers and radio operators on the roof far below Then by means of a thyratron tube seed unquestionably also the labor of prepauing the land and planting the seed Frequently it d fields with conis too late to of losses crops for the year sequent Obviously it is easier and far mors economical to treat millions of seeds to destroy disease organisms on tha seed before planting than it is to combat disease m millions of plants spread over many acres of ground The Critical Age of Thirty natio- mal-adi- and an ordinary nouncer abetted jected sufficient the old station on the new police whistle the anby the light ray pro- lung energy to cut off transmitter and snap The thyratron tube develops comparatively huge amounts of energy within itself At the first blow of the whistle from the ship received on the ground and multiplied 68000000000-00- 0 times by the tube the transmitter was turned over At the second blast (unheard by radio listeners) the tube Why the Spider Is Receiving the Voice from the Air on a hlch la Picked Up by Beam of Light a Large Concave Mirror Equipped M 1th a Small “Flectrlc Eye” to Convert the Light Maves Inlo Electrical Impulses The Latter Are Then Converted Into Sound by the Same Mrana Used in an Ordinary Radio Receiver transmitted the blast into energy sufficiently strong to turn on the new machine Operators of the flashlights signal cell on the end ofv telescope in the private observatory at his home so when the ship purred to that section of the city the telescope was trained on the flickering cabin light and one of the airship’s passengers talked over the beam of light to this ground station Tjjhe amazing experiment of talking over a beam of light was conducted In connection with the opening of the new radio transmission of The the General Electric Company feat was described as “a voice on the the World’s Master Builder of Bridges threads consist of smooth tough From silk which is not sticky this point on the spider uses tha sticky threads which constitutes the real snare The details of putting in the first of the sticky threads vary greatly The spiaer starts at M in Figure 3 and its course may be followed by the letters to V from V ths insect continues in a regular spiral until the primary spiral of smooth silk Is reached Then the spider cuts away the outer portion of the primary spira) so that it can have more room for the snare The process of cutting away the primary spiral and putting & the sticky spiral is shown about half finished In figure 4 FIG S FIG 4 FIG 5 FIG 1 FIG 1 The complete web with nearly all of the removed This Diagram Shows flow a Spider Spins Its VTcb from the Time It Fastens the FI rut Strand to Their Supports Through the is shown inprimary 6spiral figure Second third end Fourth Stages in M hlch the Net Is Gradually Formed to the Completed M eb in the Fifth mage The Threads A silken thread spun by a Millionths of an Imh in Diameter If They Were Inlarged 2000 Time They f a Spider’s 'Web Are as Thin as Thirty-tw- o spider is often as thin as thirty-tw- o Inchea in Diameter Mould Be es Big aa a Horsehair A Human Ilair Enlarged That Much Mould Be Six and One-Hamillionths of an inch In diamIf It were enlarged two eter at by the wind and carry the creature in of silk end the remaining ra thousand times it would be as big ss engineering scheme Human hair an ordinary horsehair loosing extra threads it In by moving about on the foundation VAST unthought of would ba the air Bywhile to descend it takes In of the web ascend can enlarged the same number of times is possible if science could reveal six and a half inches in diameter With some of the threads end throws out a The second step in the operation is the secret of the spider's web If man silken line to act as an anchor the laying down of the primary spiral this transparent wisp of line spiders cables with the could make ropes and are able to bind animals several thouoften display great ingenuity whirh is shown m Figure 2 end Spiders web In building a web All of these sand times bigger than themselves approximate strength of a spider’s Suppose one Is which ends at L on a iwig fifteen feet from gugpension bridges could be thrown perched across on small cables and being light the ground and wishes to throw a line and easy to anchor there would be no to another twig twelve feet away It limit to their length according to will either take note of the wind and If favorable make use of it or lower engineers For untold centuries spiders have itself to the ground run across to the would be stationed In each car In case IANT magnets placed at interto been skilled aeronauts Climbing desired spot fasten the thread and pull of emergency its movement along vals along a predetermined gome high places the snider lets looie In the slack until It Is taut a number of threads These are caught The web is spun by the female spider route are suggested by i group the magnetic air line wottyi normally by means of six little tubes called be controlled by a dispatcher at a of German inventors as a new method “spinnerets” into which open hundreds of propelling airships inflated distant point of glands each supplying a separate with hydrogen 6r helium gas This thread She is the fighter and male is undersized likely to idea according to Fopirtar Science is based upon a simple exMonthly a blind person tell a He? Not be eaten in periment which anjone may perform uses the The spider ingenuity so easily as a person with fight for himself When an iron nail is spinning its web is shown in the ac-1 display a great many In figure according to a French professor illustration placed in a tube just behind a solenoid companying BIRDS emotions Sometimes in who has been investigating the truth-tellm- g the spicier starts from a branch aboe or coil of electric wire and ths circuit closed for a fraction of a second A and drops to another branch below human way — aa ludicrously propensities of the sightless During a long series of experiments B spinning a thread and fastening it with a key the nail is shot through when taken by surprise or suddenly It then climbs on this thread to the the coil by the power of magnetism with blind and normal people he angered they bluah To turn on and shut off the power found that while the person with upper branch crosses over to a point 1 “To blush like a turkey" therefore each of below a solenoid at to the instant C and drops above point power sight could reproduce certain expresc is no Idle expreaaion for the bird’s cells would be set up making a strand as before Then gosions st wfll the blind eould not Is suffused with color under the face one end of e strand the to at detect Intervals E fastens it to pasregular expresing registered Sightless people stress of emotion while the tail is end spinning the strand behind it sage of th ear and actuate the magsions of fear joy anger or sorrow and wings trail on the ground of the of Because nets the tha across roes of way spread facial the upper automatically by by a spontaneous play The white skin of a macaw’s face branch to F The spider then goes to limitations of load that could he earmuscles Normal people did the same becomes suffused with pink when it But if a blind person were the upper branch and drops to the ned each car would accommodate thing Is enraged If m a very great fury fastening the new line at only a few passengers but the hjth aiked to repeat the expression of an L F strand E-obtained bv the streamlined every feather atands on end while it speed point 11 This F is pulled up slightemotion which he did not really feel screams The next strand which the spider vehicle would justify th charging of rends the sir with ly he could not do so whereas the norlike s naughty child ma! person could puts m Is from point I to a point on an extra fare and make aurh a service hen courting th prairie birds of the lower branch below J Fulling this profitable tha Inventors believe When this scientist demonstrated A mens blow out sir bagi on tha AH friction but that of the air line nmkee another angle in the cross fcis experiments blind people who had Side of their neck whuh glow with eliminated with be would line F does E the as strand In consequent tried following as vain volunteered subjects Although a pilot bright orange so that they look Like from K to H These last two strands economy of power to repeat certain expressions which ate fastened near their center by a bit with auxiliary control apparatus golden balls the more fortunate found easy L&iULJ M&m M W lf Aerial Travel by Magnets Can the Blind Lie? rtf bread-winnert- Do Birds Blush? 'c photo-electri- ear-splitti- Kinff rtr y41ct4 1111 ei al seed-born- A Double-Dut- y W is the critical year in ths the average man Ones you have passed a score and THIRTY ten according to a medical authority you have outgrown many serious diseases On the other hand you become liable to many others that seldom or never attack people in the ’teens or twenties Anemia for instance is practically unknown after thirty If you have not had it by then you may never If you have you will have outgrown it at thirty or so Acne too — that spottiness of complexion so common among young people has vanished by then Thirty too may see you out of the reach of the gravest of all diseases If you have shown no consumption sign of it bv then in all probability If you have hitherto you never will escaped rheumatic fever you are also fairly safe from it for life Epilepsy and goitre too usually do not mako their first attacks on anyone who ha reached thirty Baby Carriage the mother of two children one an in arms and the other a toddler from three to five years old wishes to take her little brood out in the sunshine and fresh air she is confronted by a problem She has a baby carriage of course but it will accommodate Thus the older child Is only the younger child compelled to walk and it often becomes tired out Mrs Ruth H Chatfield of Freeport Long Island has solved this of The Left ML eels of the Carvery problem who many mothers M ork on Telruropie have two very young riage M hen Axle MLirh Opened children by her inBring Into iew an Advention of the double- Out ditional Neat Suitable for duty baby carriage Older Child which is pictured In the accompanying il- - Fr‘ This ve- - F lustration V hide is so arranged $ that It can be used singly like the ordinary baby carriage and when necessity requires provides a Kf seat for the second nJ older child infant 'Trs??fS ”S J |