Page 8 University Daily Kansan Thursday. Feb. 11. 1954 Dick Tracy Wrist-Radio Pioneered by Edison? By L. STANLEY HACK Were Thomas Edison with us today to celebrate his 107th birthday, he might blink at the bright lights and note how his invention of the incandescent light bulb is leading to the development of the Dick Tracy wrist-radio. Mr. Edison's problem was I trying to find a substance to use as a filament in the light bulb that he was planning to invent. The material had to be strong enough to hold up at high temperatures, yet thin enough to heat to a glow. Among other things, he tried coated bamboo. It didn't work so well. Though tungsten was brittle and hard to make into a wire, it was eventually used. With the incandescent bulb came the necessity for current electricity. Mr. Edison also was responsible for the development of the first electric utilities plant, Pearl Street station in New York City. About twenty years after Edison's enlightening invention, Sir John Albros Fleming, an English electrical engineer, found that when a filament placed next to a conductor is heated, the filament gives off electrons which are collected by the conductor. This, termed the Edison effect, led to the development of the vacuum tube—and eventually radio, and the soap opera. On the basis of the Edison effect, and many later discoveries, Bell telephone laboratories developed in 1947 what is known as a transistor. The transistor, composed largely of silicon and germanium, takes the place of a vacuum tube, but it does not heat it to heat its filament. It utilizes power from the electronic effect of the materials upon one another. Since transistors are rugged and can be made as small as the eraser on a pen clip, we have reason to be careful, of course, of the wrist-radio is not far off. If 107-year old Mr. Edison were here today and felt up to it, he could take a bow, not only for inventing the incandescent bulb, but also for the Edison effect and the part it played in the development of Bell Telephone's transistor. And Dick Tracy, don't forget that wrist-radio. Former Treasurer to Speak The AWS Senate met Tuesday to discuss the coming All Women's day to be held Feb. 24 Georgia Neese Clark Gray, former treasurer of the United States will speak, following a coffee given in her honor by the senate. Another big event of the day will be the election of a student dean and assistant dean of women. The day's activities will end with a dance that evening. WINTER Is Still Here! Automobile Manufacturers agree that cars should be serviced more often in the Winter. Let us Winterize your car. WE WILL- - Lubricate - Check Battery - Change Oil Pi Tau Sigma. 7 p.m., 306, Memorial Union, Business meeting. Official Bulletin - Check Tires - Check Anti-Freeze Der deutsche Verein will hold the first meeting of the theater in 502 Freser - Check Muffler System Psychology club, 7:30 p.m. Pine room Memorization. Speaker. Dr. Kaplan Rocket Mentions. Geology club 7:30 p.m. 426 Lindley hall. Dr. H. T. U. Smith will present a travelogue in color. Coffee will be served. Law Wives. 8 p.m. Law lounge Prof. Ballet Chemistry club. 8 p.m. pms. BCLC "Decision for Chemistry" by James Gillard. Newcomers of University Women's Club. 8 p.m. Art Museum lounge. Program: Miss Beulas Stewart, Indian Jewelry. AWS House, 4 p.m., Jayhawk room, Union. Club Dixie to Have Show Music by "Big Jay" McShann will highlight the Club Dixie party Friday night in the Student Union ballroom. A 45-minute floor show, featuring the talents of 22 students will be in- No Kuku meeting Scabbard & Blade military society, 7:39 p. 1964, p. 208. FRIDAY Student-Faculty Coffee, 4 p.m. Music and Browsing room, Memorial Church, Union Chapel, Caesar's with the group. All welcome and urged to attend. Sponsored by SUA. Rally 10:35 a.m. KokuKu wear sweaters. Ballroom 9:45 a.m. KokuKu wear sweaters. E. x Room 17. Discussion: "Student Critique on Teaching Methods." Panel: I. Xears, Joan Piller, and Stann Balmisch. KAFCW registration: 1:30:30 p.m. Pine room, Union. Dinner, room 305 at 12:00 noon SATURDAY Hillel Foundation service, 7:30 p.m. Danforth chapel Meeting in 305 Union Religious Emphasis Week retreat, 12 to 5 p.m. At Myers Transportation 12 BACW CW group discussions, 8:30 p.m. BKCQ Unit, Luncheon in room 506 at 12:00 p.m. Jayhawk Brotherhood, 3 p.m., room 306. Union. Junior Panhellenic, 4 p.m., Delta Gamma house. MONDAY in the house. Red Peppers, 5 p.m., Ballroom. Union. Mary Ann Lemoine, fine arts freshman, will play "Twelfth Street Rag" and "Lady of Spain" on the accordion. Veda Driver, fine arts freshman, will accompany her. produced by Paul Leoni, college sophomore and master of ceremonies. A quartet singing "Birth of the Blues" and "Basin Street Blues" includes Marilyn Eyler, education junior; Carolyn Oakes, college sophomore; Jolene Oakes, fine arts sophomore, and Sue Jane Hughes, college junior. Six girls will comprise a "Roaring Twenties" chorus line. They are Sue Miller, fine arts sophomore; Teresa Hoffman, college sophomore; Jody Hamilton, college sophomore; Carol Saunders, college sophomore; Karen Hansen, college sophomore, and Faydean Orth, college sophomore. Juggling will be performed by James Anderson, fine arts freshman. His accompanist is Charles Kynard, fine arts junior. "Tenderly" and "St. Louis Blues" will be sung by Teresa Cartwright, education junior, with Kynard accompanying. Ruth Taggart and Miller, college freshmen will dance to "By Heck." The last act will be a trio singing "Ricochet Romance." "Water Can't Quench the Fire of Love," and "Tennessee Big Walk." The three women are Maria Griffith, college junior; Marjorie Englund, education junior; and Pat Dawes, college junior. The dance is semi-formal and tickets can be purchased now at the concession stand in the Student Union and the information booth from 1 to 5 p.m. Admission is 75 cents. --ing. In others they deal mainly with customer problems. Also, certain departments maintain sales development sections, where technical problems connected with the introduction of a new product, or a new application for an established product, are worked out. Books for your Valentine Come in and see our fine selection. The Book Nook 1021 Mass. Ph. 666 THE DU PONT DIGEST A major in glibness and a minor in solid information—those were the mythical requirements for a salesman in the old days. But they really never sufficed for a man selling the products of chemical technology. Technical Sales Du Pont technical men are assigned to various types of technical sales activity. In some spots they are equipped to handle all phases of selling. In others they deal mainly with customer problems. Also, certain departments maintain sales development sections, where technical problems connected with the introduction of a new product, or a new application for an established product, are worked out. Today, the diverse applications of Du Pont's 1200 products and product lines create a need for trained sales personnel representing many different technical backgrounds. These men must deal intelligently with problems in chemistry and engineering applied to such fields as plastics, ceramics, textiles, and many others. For example, a technical man in one of Du Pont's sales groups was recently called upon to help a customer make a better and less expensive hose for car radiators. Involved were problems in compounding, such as choice and amount of neoprene, inert fillers, softeners, accelerators, and antioxidants. Correct processing methods also had to be worked out, including optimum time and temperature of milling and extruding. The successful completion of this project naturally gave a good deal of satisfaction to the customer as well as Du Pont. In another case acustomer wanted to reduce carbon contamination of arc welding rod stock. A Du Pont technical service man suggested changes in cleaning procedures that lowered contamination by 90 per cent. The new process also reduced metal loss during heat treatment—a benefit that more than offset the cost of the additional cleaning operations, Technical men interested in sales work usually start in a laboratory or manufacturing plant where they can acquire needed background. Depending on their interest and abilities, they may then move into technical sales service, sales development, or direct sales. In any of these fields, the man with the right combination of sales aptitude and technical knowledge will find interesting work, and exceptional opportunities for growth in the Du Pont Company. W. A. Hawkins (left), B.S.M.E., Carnegie Tech., demonstrates extrusion of "Teflon" trafluoroethylene resin for a customer. James A. Newman, B.S. in Ch.E., North Carolina State (left), discusses study of optimum settings and conditions for carding nylon staple with Prof. J. F. Bogdan of North Carolina State's Research Division. ASK FOR "Chemical Engineers at DuPont." This new illustrated booklet describes initial assignments, training, and paths of promotion. Just send a post card to E. I. du Pont de Neumours & Co. (Inc.), 2521 Nemours Building, Wilmington, Delaware. Also available: "Du Pont Company and the College Graduate" and "Mechanical Engineers at DuPont." BETTER THINGS FOR BETTER LIVING . . THROUGH CHEMISTRY Watch "Cavalcade of America" on Television