FRIDAY, SEPTEMBER 14, .1951 Water Tunnel tests Underwater Devices Penn' State is the home of one of the largest watier tunnels in the world. Currently the staff of the Garfield Thomas Water Tunnel, located on the corner of Route 322 and Pollock road,, is engaged in testing underwater devices. The water tunnel expected to produce valuable information on underwater devices both for non military purposes and national defense. Studies and designs of torpedo propellors, are currently, being studied. Research in the tunnel is done with the torpedo remaining stationary and the water press ure, . velocity, and temperature being regulated. • Torpedo Depth The depth of the torpedo model in actual conditions can be de termined by varying water press ure in the tunnel from minus 12 to plus 45 pounds per square inch, corresponding to depths from a few feet to a hundred feet. The 10.6,000 gallons of water are circulated by a 2000 horsepower motor which can produce water velocity up to 80 feet per second, or 55 miles per hour in the work ing section. Temperature is regulated by a 350 ton refrigeration system, which is used to remove the fric tional heat incurred' pumping the water. The tunnel itself is 100 feet long and 32 feet high. Filled, it weighs nearly 600 tons. It is shaped like a rectangle with the largest portion 12 feet in dia meter and the smallest section, the working section, only four feet in diameter. 'Largest Working Section This working section—the larg est in the world—where the mod els are tested contains four-inch thick plexiglass windows, through which the models are observed and photographed. All measurements to be made and mechanisms' to - be controlled are done from a soundproof booth near the tunnel. Messages be- TOP STUDENTS WHO HAVE USED BOOKS TO SELL 8:30 A.M. PENN - STATE BOOK EXCHANGE Student-Operated tween engineers are relayed through an inter-communications system. The tunnel is named after Lt. j.g• W. Garfield Thomas Jr., who was graduated in the class of 1938. Lt. Thomas, one of the first Penn State alumni casualties in World War 11, was fatally wound ed' after saving the lives of his gun crew, at Guadalcanal. Ship Named For Hero On Dec. 12, 1943, the U.S. Navy named the USS Garfield Thomas in his honor. He also received the Navy Cross. Dr. James Robertson. is direc= tor of the lab; William Martin, re search associate;.and Frank Lane, associate professor. James McGinley, Thomas Pierce, Girard Caleh u f f, and Barnes McCormick are research assistants. For Best Results Use Collegian Classifieds Howard I Smith The Best in Haircuts "Our Work is Guaranteed" 210 S. ALLEN DOLLAR USED BOOK AGENCY SHOULD BRING THEM TO THE ÜBA THIS WEEK TO NOON 4:30 P.M. 1:00 TO iSAILY COLLEGIAN, STATE COLLEGE, Pialrisr.uv.eiruh. Debaters Slate First Meetipg For Sept. 26 • A preliminary meeting of freshman and upper-class candi dates for •the men's- debate team will be held Sept. 26 in 305 Sparks. Joseph F. O'Brien, man ager of the debate team, announc ed that tryouts for the team will be held Oct. 3.' Last year the Penn State men's team won the PZ , .nnsylvania state championship and Marlin Bren ner earned an individual first place in the grand national de bate championship in the infor mative reading division. David Lewis placed first among the top 20 debaters following the grand champion, Richard Van Or den, of Bowdoin. Brenner placed fifth among the top 20. The men's affirmative team placed fourth in the Big Ten, a listing of the top teams in the tournament. About 210 debaters from 45 colleges participated in the tournament. Clair George, senior, and Bren ner, who 'graduated in June, rep resented the Middle Atlantic 'region in competition for mem bership on the American Inter national Debate teams which will tour Australia and Great Britain. Fourteen debaters attended the tournament held in Evanston, 111. , In the TUB OPEN ALL DAY SATURDAY Non-Profit Rise in Food Cost Boosts Dorm Rate A general rise in food costs during the past year has been given as the reason for a $2O per semester increase in board at all campus dining halls. The increase is effective with the current se mester and brings the total board for a semester to $220. In a letter earlier in the" sum mer to parents and students, Samuel K. Hostetter. comptroller, explained that "the charge for meals at the College has been kept comparable with that at similar institutions, and every effort will be made to continue to serve the best possible meals at a minimum cost." a branch of the School Supply Store College Reduces Interclass Rate By action of the College Board of Trustees at their spring meet ing, the student interclass finance fee has been reduced frOm 75 to 50 ' cents a semester. Last spring All-College Cabinet recommended the measure as part of treasurer Emerson Jones' pro posed budget. He pointed out that there was a surplus in the budget because of income from various dances held during the year. The reduction in the student fee was taken into consideration when planning this year's budget. at the
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