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By M. TEVIS

ONE by one the marvels of our fairy-tales separate antenna systems, each commumaterialize into actual facts. Do you re- nicating with a different country. Sixteen member Fine Ear, the faithful servant of the miles away, at Riverhead, Long Island, is a persecuted prince, who had only to lay his multiplex receiving-station, so arranged as ear to the ground to detect the approach of to receive simultaneously all radiograms the hostile pursuers miles and miles away? coming to the United States from the foreign The teller of that tale little dreamed that countries embraced in the system. But centuries later a prince of invention would strange to say, there are no radio operators make it possible for a mechanical "Fine- at either of these stations! The operators Ear” to report to its master words from are conveniently situated in the Central all parts of our great round globe. But Traffic Office, which is located in the busiest on November 5, 1921, President Harding part of busy New York City. flashed a message to all the peoples of the The actual transmission takes place by earth by means of the world's greatest wire- what is known as “remote control,” directed less plant, newly erected on a tract of land from the central office. In the same way, covering ten square miles on the north- the distant signals pouring in by radio from

all quarters at the receiving-station are automatically transferred to wire lines and received in audible tones at the central office. The action is simultaneous, from the time the signals are transmitted from some foreign point and picked up by the aërial, to the moment when the receiving operator in New York transcribes them.

We can realize the significance of this when we remember that in the early days of the art each station functioned alternately as a transmitter, a receiver, and a telegraphoffice, which, of course, involved a great loss of time and a consequent reduction of possible business, since the station had to stop sending while receiving, and vice versa. When the signals reach the central office they are interpreted and typed off by skilled operators, or else received automatically at high speed by ink recorders. Lastly, they are handed to messenger-boys, who bear them to all parts of the city.

The great towers which fling themselves into the air with such gossamer lightness of appearance are really tremendously strong. No less than 1800 tons of structural steel

were used to erect the first twelve-about POWER-HOUSE WITH COOLING-POND, WHICH PERMITS

150 tons apiece. Each tower is 410 feet in CONSTANT MECHANICAL OPERATION, IN FOREGROUND

over-all height, and the cross-arm at the top

which supports the antennæ is 150 feet long. eastern shore of Long Island, about seventy To support this great height and weight, miles from New York City.

they must rest, of course, on a very solid This great station, by means of which foundation. The base is made of solid simultaneous wireless communication can concrete, 8200 tons of which were needed for be held with the entire world, is known as the first twelve towers; each tower leg is Radio Central. This is the transmitting- sunk nine feet below the surface of the station, so planned as to have a number of ground, and there is a total base area of 360 square feet.

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The towers are nearly a graph signals could be sent and received for quarter of a mile apart, so that it is almost a distance of several miles by such waves, three miles from the first to the twelfth. named Hertzian waves after their discoverer. Eventually, there will be seventy-two towers But even Marconi did not then realize the supporting twelve antenna units.

ultimate possibilities of this at any rate, Each antenna unit might be said to rep- when he was asked in an interview the folresent the spoke of a giant wheel three lowing year how far such a despatch could be miles or so in diameter. The wires, or an- sent, he cautiously replied, “Twenty miles." tennæ, which they bear aloft so proudly and sustain so securely, stretch horizontally from tower to tower. Each antenna consists of sixteen silicon-bronze cables three eighths of an inch in diameter. For the first two antenna systems,-those already erected,-fifty miles of cable were needed. The ground system for these consists of 450 miles of copper wire, which is buried in the ground in "starfish” and in "gridiron” fashion.

The first power-house section accommodates two 200-Kilowatt high-frequency transmitting alternators with their auxiliaries and equipment. Each transmitting unit has a sending speed of one hundred words a minute, so that the two units already completed have a combined sending capacity of two hundred words per minute. As new antenna units are added the transmitting capacity will be correspondingly increased.

One of the picturesque features at the great transmitting-station is the cooling-pond, where the water which circulates through the high-speed alternators is cooled. This pond is seven feet deep and 64 by 42 feet in area.

It is provided with four spray-heads, which send graceful and ornamental jets of water into the air. The 23,000-volt transmission-line which sup

THREE-MILE LINE OF THE FIRST TWELVE TOWERS, EACH 410 FEET HIGH WITH

CROSS-ARMS, WHICH SUPPORT THE ANTENNÆ, 150 FEET LONG plies the station runs from Port Jefferson, seven miles away. The interviewer inquired why he set this

This stupendous plant is a growth from limit, and he answered with a succinct statea tiny seed dropped into the fertile mind of ment which may serve to close this article, a genius, within the brief space of our own since it shows at once the essential principle generation. In 1887, Professor Hertz ob- involved and that true spirit of scientific served that electro-magnetic waves research embodied in the Latin proverb, radiated into space with enormous speed by Festina lente,” “Make haste slowly.” the electrical discharge passing between the This was his reply: "I am speaking within electrodes of the spark-gap of an induction practical limits, and thinking of the transcoil or static machine. Eight years later, mitter and receiver as thus far calculated. Guglielmo Marconi discovered that electrical The distance depends simply upon the force can be transmitted through earth, air, amount of the exciting energy and the dior water by means of high-frequency oscil- mensions of the two conductors from which lations. A year later he proved that telę- the wave proceeds,”

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By RALPH HENRY BARBOUR

SYNOPSIS OF PREVIOUS INSTALMENTS

Ned and Laurie Turner, twins, arrive at Hillman's School at Orstead, N. Y., from their home in California. They consider that, although inexperienced, they owe it to the school to go in for sports, and it is decided that Ned shall take up football, and Laurie, baseball. Their first acquaintance among their fellows is a neighbor on their floor named "Kewpie" Proudtree, Kewpie, a candidate for center on the football team, has, contrary to orders, taken on flesh in the course of a lazy summer and seeks to placate the captain by introducing Ned as a star player. Laurie aids in the hoax, and Ned, whose igno rance of football is colossal, is welcomed as a valuable addition to the squad. He threatens mutiny, but Laurie convinces him that the honor of the Turners is at stake and that he must go on with it.

CHAPTER V

"Hep!-Hep!--Hep!-Hep!"

This was in time to the boy's dogged IN THE PERFORMANCE OF DUTY

steps. A look of consternation came into School began in earnest the next morning. his face and he faltered. Then, however, he Ned and Laurie were awakened from a deep set his jaw, looked straight ahead, and came slumber by the imperative clanging of a gong. on determinedly. There were hurried trips to the bath-room, Hep!-Hep! -_-" and finally a descent to the recreation room Up the steps he passed, a disk of color in and morning prayers. Breakfast followed in each cheek, looking neither to right nor left, the pleasant, sunlit dining-hall, and at half- and passed from sight. As he did so, the past eight the twins went to their first class. chorus changed to a good-humored laugh of There was n't much real work performed that approval. Ned made inquiry of a youth morning, however. Books were bought and, beside him. being again in possession of funds, Ned pur- "Day boy," was the explanation. “There chased lavishly of stationery and supplies. are ten of them, you know: fellows who live He had a veritable passion for patent binders, in town. We always give them a welcome. scratch-pads, blank-books and pencils, and That chap had spunk, but you wait and see Laurie viewed the result of a half-hour's mad some of them!career with unconcealed concern.

Two more followed together, and, each "You 're all wrong, Ned,” he said earnestly. upheld in that moment of trial by the pres"We are n't opening a stationery emporium. ence of the other, passed through the ordeal Besides, we can't begin to compete with the with flying colors. But the twins noted that office. They buy at wholesale, and—" the laughing applause was lacking. After

“Never mind the comedy. You'll be that, the remaining seven arrived almost on helping yourself to these things soon enough, each other's heels and the air was filled with and then you won't be so funny."

Heps!" Some looked only surprised, others "That 's the only way they 'll ever get angry, but most of them grinned in a used up! Why, you 've got enough truck sickly, embarrassed way and went by with there to last three years!"

hanging heads. There was one interesting annual obser- "Sort of tough," was Ned's verdict, and vance that morning that the twins witnessed Laurie agreed as they followed the last vicinadvertently. At a little after eight, the tim inside. fellows began to assemble in front of School "It looks as though day students were n't Hall. Ned and Laurie, joining the throng, popular,” he added. supposed that it was merely awaiting the Later, though, he found that he was wrong. half-hour, until presently there appeared at The boys who lived in the village were acthe gate a solitary youth of some fourteen cepted without reservation, but, naturally years, who came up the circling drive about enough, seldom attained to a full degree of as joyfully as a French Royalist approaching intimacy with those who lived in the dormithe guillotine. Deep silence prevailed until tories. the embarrassed and unhappy youth had By afternoon, the twins had become conquered half of the interminable distance. quite well shaken down into the new life, Then a loud Hep!was heard, and the had made several superficial acquaintances, throng broke into a measured refrain:

and had begun to feel at home. Of Kewpie Proudtree they had caught but fleeting all. He wanted lots of material, but he glimpses, for that youth displayed a tend- did n't want any fellow to report for practice ency to keep at a distance. As the hour of who did n't mean to do his level best and four o'clock approached, Ned became more stick it out. Those who were afraid of either and more worried, and his normally sunny hard work or hard knocks had better save countenance took on an expression of deep their time and his. Those who did report gloom. Laurie kept close at his side, fear- would get a fair trial and no favor. He ing that courage would fail and Ned would meant to see the best team this fall that bring disgrace to the tribe of Turner. But Hillman's School had ever turned out, one Laurie ought to have known better, for Ned that would start with a rush and finish with a was never what his fellows would have called bang, like a rocket! a "quitter.” Ned meant to see it through. “And," he went on, “I want this team His mind had retained very little of the foot made up the way a rocket is. A rocket is ball lore that his brother had poured into it filled with stars, fellows, but you don't the night before, but he had, at least, a some- realize it until the final burst. So we're what clearer idea of the general principles going to put the soft pedal on individual of the game.

He knew, for instance, that a brilliancy this year. It almost had us licked team comprised eleven players instead of the last fall, as you'll remember. This year twelve he had supposed, and that certain we 're going to try hard for a well-rounded restrictions governed the methods by which team of hard workers, fellows who will interyou might wrest the ball from an opponent. lock and gear together. It's the machine Thus, you could not legally snatch it out of that wins, the machine of eleven parts that his arms, nor trip him up in the hope that he work all together in oil. We 're going to would drop it. Ned thought the restric- find the eleven parts first, and after that tions rather silly, but accepted them.

we 're going to do the oiling. All right now! The athletic field, in school parlance the Ten men to a squad. Get balls and pass in play-field, was even larger than it had circles. Learn to hold the ball when you looked from their windows. It held two catch it. Glue right to it. And when you gridirons and three baseball diamonds, as pass, put it where you want it to go. Don't well as a quarter-mile track and ten tennis- think that the work is silly and unnecessary, courts. There was also a picturesque and because it is n't. A fellow who can't hold a well-appointed field-house and a fairly large ball when it comes to him is of no use on this grand stand. To Ned's relief, most of the team. So keep your minds right on the job ninety students were in attendance, though and your eyes right on the ball. All right, only about forty of the number were in Captain Stevenson." playing togs. Ned's idea was that among At least, Ned could, to quote Laurie, so many he might escape close observation. "stand in a circle” and pass a football, and

He had, of course, handled a football more he did, and did it better than several others or less, and he was possessed of his full share in his squad. In the same way, he could go of common sense. Besides, he had perhaps after a trickling pigskin and catch it up withrather more than his share of assurance. Το out falling over himself, though it is possible his own surprise, if not to Laurie's, he got that his 'form' was less graceful than that of through the hour and a half of practice very one or two of his fellows. When, later, they creditably. Seasoned candidates and nov- were formed in a line and started off by the ices were on the same plane to-day. There snapping of the ball in the hands of a worldwas, first of all, a talk by the coach. Mr. wearied youth in a faded blue sweater bearMulford was a short, broad, good-humored ing a white H on its breast, Ned did n't show man of about thirty, with a round and florid up so well, for he was almost invariably one countenance, which possibly accounted for of the last to plunge forward. The bluethe nickname of "Pinky' that the school had sweatered youth called his attention to the affectionately awarded him. His real name fact finally in a few well-chosen words. was Stephen, and he had played guard, and "You guy in the brown bloomers!” he played it well, for several years with Trinity bellowed. (Of course they were n’t bloomers, College. This was his fourth season as foot- but a pair of somewhat expansive golf ball coach at Hillman's and his third as breeches that Ned, lacking proper attire, had baseball coach. So far he had been fairly donned, not without misgivings, on Laurie's successful in both sports. His talk was brief advice.) “Are you asleep? Put some life and earnest, although he smiled through it into it! Watch this ball, and when you see it roll, jump! You don't look like a cripple, The speaker was a lanky, red-haired man but you surely act like one!"

who bristled with authority and outrage. Toward the end a half-dozen last-year Two laps?'' stammered Ned. "No, sir." fellows took to punting, but, to Ned's relief, “Get at it, then. And beat it in when you no one suggested that he take a hand at it, have. Want to catch cold, do you? Sitting and at half-past five or thereabouts his trials around without a blanket or anything like came to an end. He went out of his way, that!” The trainer shot a final disgusted dodging behind a group on the side-line, to look at the offender and went on. escape Joe Stevenson, but ran plump into “Gee," murmured Ned, “I thought I was Frank Brattle instead.

done! Two laps, he said! I'll never be "Hello, Turner," Frank greeted. "How able to, Laurie!" did it go?

“Oh, yes, you will,” was the cheerful re“All right," replied Ned, with elaborate sponse. “And while you 're doing them you carelessness. "Fine."

can think up a better rhyme for 'football' "Rather a nuisance having to go through than I did!” the kindergarten stunts, is n't it?” contin- Ned looked back reproachfully as he ued the other, sympathetically. “Mulford's limped to the ground and, having gained the a great hand at what he calls the fundamen- running-track, set off at a stiff-kneed jog. tals, though. I dare say he 's right, too. Laurie's expression relented as he watched. It 's funny how easy it is to get out of the "Sort of tough on the kid,” he muttered hang of things during the summer.

I'm as

sympathetically. Then his face hardened stiff as a broom!"

again and he shook his head. “I've got to "So am I," answered Ned, earnestly and be stern with him, though!” truthfully. Frank smiled, nodded, and wandered on, and Ned, sighting Laurie hunched

CHAPTER VI up in the grand stand, joined him. “It 's a

NED IS FIRM bully game, football," he sighed, as he lowered himself cautiously to a seat and listened KEWPIE PROUDTREE obeyed the shouted to hear his muscles creak. “Full of benefi- invitation to enter Number 16 and appeared cial effects and all that." Laurie grinned in with a countenance as innocent as that of an silence. Ned felt experimentally of his back, infant. "Hello, fellows," he said cordially, frowned, rocked himself backward and for- dropping into a chair with indications of ward twice and looked relieved. “I guess exhaustion. “How do you like it as far as there's nothing actually broken," he mur- you 've gone?” mured. “I dare say it 'll be all right soon." Ned shifted in his seat at the study-table,

"They say the first two months are the choking back a groan, and fixed Kewpie with hardest,” responded Laurie, comfortingly. a baleful look. "Listen, Proudtree,” he said “After that there 's no sensation."

sternly. “I've got a bone to pick with you!" Ned nodded. “I believe it," he said “With me?'' Kewpie stared in amazement. feelingly. He fixed his gaze on the farther “What have I done?goal-post and after a minute of silence re- “You 've got me into a fix, that 's what marked:

you've done! Did n't you ask me-us“I'd like to catch the man who invented last night not to let on to Stevenson that we football!"

-1-could n't play football? Did n't you He turned a challenging look on his brother. say it would be a favor to you? Did n't you Laurie blinked and for several seconds his say it would be all right and—and everylips moved noiselessly and there was thing?" haunted look in his gray eyes. Then, tri- "Sure! What of it?" umphantly, he completed the couplet: “It "Why, you crazy galoot, you must have may suit some, but it does n't suit all!" told him that I knew all about the game! Rotten!" said Ned.

And you knew mighty well I did n't! Stev“I 'd like to see you do any better," an- enson thinks I'm a wonder, and I don't know swered Laurie, aggrievedly. "There is n't a touchdown from a -a forward kick!". any proper rhyme for ‘football,' anyway." "Pass, not kick,” corrected Kewpie, pa

“Nor any reason for it, either. Of all tiently. "Look here, Turner - Say, are you “Hi, you fellow!" interrupted a scandal- Ned or Laurie?

Ned or Laurie? Blessed if I can tell!" ized voice. “What are you doing up there? "Ned," replied that youth, with much Have you done your two laps?"

dignity.

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