Bourne High School - Canal Currents Yearbook (Bourne, MA)

Page 19 text:

CANAL CURRENTS 17 est type of input, and corresponds to a microphone in sound. The scanning disk merely separates the picture into strips, one being transmitted after the other. Behind the scanning disk is a large bulb, either a photo-electric cell or a cathode- ray tube whose duty it is to turn the light pulsations seen through the scanning disk upon the image into electro-mag- netic current. This current in turn passes through an audio- frequency amplifier, usually stepping it up about fifty times. Then this low frequency current passes into the third and last stage, a radio frequency amplifier, an exciter, and then into an oscillator, and out to the antenna. The first stage composed of the scanning disk which is continually rotating and the photo-electric cell must be built with utmost precision or else the image will be received dis- torted due to the deflection of light rays. Of course there is also another transmitter on a slightly different wave length which accompanies the television with sound or voice trans- mission. As for the television receiver, first and mainly there is a two-channel short-wave receiver, — one channel receiving voice and connected to the loudspeaker while the other chan- nel is connected to a cathode ray bulb and a lens to magnify the image. There is nothing really complicated in the oper- ation of the receiver; in fact, it operates precisely the same as your home broadcast set except there are two tuning con- trols instead of one. Within ten years’ time television receivers will be as com- mon as broadcast receivers are now, if not more so. It’s a big field of science and here there is opportunity for thous- ands of research workers and experimenters. Lloyd Hendrick, ’37. IF Just think how much the small word ‘flf” Can mean to us each day — We use it — oh! so many times In things we think and say. It’s “If I could,” and “If I might,” We sometimes even boast! If all your “ifs” could come quite true Which one would you like most? Priscilla Davis, ’38.

Page 18 text:

16 CANAL CURRENTS IN AN OLD FASHIONED GARDEN On a night all still and starry In a garden of the past There the flowers nodding gently Are the very, very last Of that throng that years before them Danced and shook their heads in glee, Merry, careless and light-hearted Yet, these seem as fair to me. Long ago I saw this garden When it was the joy and pride Of a tiny, fair-haired maiden In the cottage by its side. In the summer months tney blossomed. Tended by her loving care. In the winter months she waited Knowing they were sleeping there. In the summer they were brightest. As they were — so was she too. Bright and cheerful, gay and loving. Golden hair and eyes of blue. In the winter they had faded One by one to fall and die. And the maiden too lay near them Underneath the winter sky. For as Death, the Reaper, gathered them He took the maiden too. She, the fairest flower among them Lily-white and Violet-blue. Dorothy Ryan, ’38. TELEVISION Television, I believe, is the most promising and useful experiment of the age. The American people are apt to think Television is a thing not in use as yet and only in the experimental stage. However, although television is not yet perfected (nothing else is for that matter!) this assumption is entirely wrong. Television is today used in more than ten different depart- ments including the War Department. It possesses more than twenty-five regular broadcasting and experimental transmitting stations and has thousands of regular receivers. The mechanism of a television transmitter has three separate divisions: — first, the scanning disk which is the old-

Page 20 text:

18 CANAL CURRENTS THE BOK SINGING TOWER Like a great symphony in stone the Bok Singing Tower rises out of the soil of Central Florida on Mountain Lake. Tradition claims that Iron Mountain, on whose summit the Singing Tower stands, was once a sanctuary for the Indians of Central Florida. After the winter vigil of Dark Moon with its ceremonial wailing at Lake Wailes, the tribes worshiped here the rising sun of each new spring. As we look at the Tower from a distance we perceive an awe-inspiring shaft of pink Etowah and grey Creole marble that seems the soul of majestic tranquility and strength. In the pool of the Glade the tower is reflected in ever- changing shades of color. The soft blue of the sky, the scur- rying clouds, the rose and green of the trees and flowers, and the myriad of light and dark shadows blend to form a glimpse of paradise. The mirror-like surface of the pool is broken only by an occasional bird landing in the water or taking its daily bath. The sanctuary is located three hundred and twenty-four feet above sea level, and is on the highest point of land in Florida. Fourteen lakes are visible from the sunset plateau and thirty-six can be seen from the top of the tower. A sun- rise service to which all visitors are invited is held each Easter morning in the Sanctuary. The great North Door depicts in yellow brass the six days of creation. The sundial carved on the southern side of the tower indicates the latitude and longitude of Iron Mountain. The table at the base of the dial gives the difference between sun and clock time in this latitude for each day. All the interior designs and carvings in tile and bronze depict an allegory of sanctuary life and planting. Besides the bell-chamber the tower contains two copper-steel tanks with a capacity of th irty thousand gallons of water used for watering the sanctuary. The Tower rises from its square base fifty-one feet wide to the majestic height of two hun- dred and five feet. The stained glass window of the upper chambers is a model of color and splendor; the uppermost section is the largest and most beautiful; the next is smaller, but more in- tricate; and the smallest is a fancy grill-work design over a small balcony. The sanctuary bells compose one of the largest carillons yet cast. There are seventy-one bells which cover a range of four and one-half octaves. The best effects of the carillon are obtained at a position about two hundred yards from the