PAGE EIGHT UNIVERSITY DAILY KANSAN, LAWRENCE, KANSAS. WEDNESDAY, APRIL 16, 1941. Engineers Feature "Workable" Science Popcorn Marches On Just to show what a mechanical engineer can do when he gets the inventing urge, the department of mechanical engineering will exhibit an unusual popcorn popping machine at the Engineering Exposition Friday and Saturday. This brain-child, rivaling any of Rube Goldberg's mad inventions, selects one kernel of popcorn at a time, pops it, places it on a conveyer, sprinkles on butter and salt, and hands it to anyone who wants it. the framework of the machine is covered with a transparent material so visitors can watch every step in the operation. The machine was built a few years ago by a student in the department, and has been a hit at recent expositions. Beer Bottle Calliope Also on exhibit will be the beer bottle calliope. This calliope is operated on a regular keyboard, but beer bottles partially filled with water take the place of pipes. Beer is not used because it foams too much when the air passes through it. A stroboscope, used for studying fast-moving machine parts, will be demonstrated during the exposition. By flashing a bright light at the part being studied as many times as it revolves, the stroboscope produces an optical effect that makes the part appear to stand still. By timing the flash slightly ahead or behind the revolution, the part appears to be moving slowly. A miniature foundry will be in operation for visitors to watch the various processes. Various aircraft companies will have airplane engines on display. A "cutaway" airplane will enable visitors to inspect the working parts of a plane. The uses of the wind tunnels will also be demonstrated. The mechanical engineering exhbit will be held in the engineering laboratory in back of Marvin hall. High Schools To Visit Here This Weekend When 500 high school students from 23 towns swarm to the campus for the first annual Interscholastic Guest day Friday, they will face an eventful day. Planned tours of the campus, the Kansas Relays, a concert by the music department, and a dance in the ballroom will be among the activities on their crowded schedule. At 4:30 p. m. all-out aid to entertainment will be given by the music department when it turns on the heat to bring the orchestra, Men's Glee Club, Women's Glee Club, A Cappella choir, and the University Band all together in one five-star performance. The concert will be Hoch auditorium and will be open to the public, H. G. Ingham, director of the extension division, said today. Clayton Harbur's band will swing out for the visiting student's pleasure from 7:30 to 9 p. m. in the Union ballroom. A special crew of University students will be on hand to be sure everyone has a good time. Another feature of the day will be a barbecue beef dinner served picnic-style in Marvin grove at 6 o'clock. In the morning, breakfast will be served in the ballroom. Then students will be taken on tours of the campus, returning to the ballroom at noon for lunch. RELAYS QUEEN--selecting team will be present at the Relays to see in person the three co-eds whom they honored. The new queen succeeds Helen Johnson, Kappa Kappa Gamma, and queen of last year's Relays. Becky Tremblly, Theta, and Marjorie Heimbrook, Gamma Phi, were the queen's escort last year. JAYHAWKER QUEEN (continued from page one) vine, Gamma Phi Beta; Shirley Irwin, Kappa Kappa Gamma; Mary McVey, Pi Beta Phi; and Shirley Tholen, Kappa Kappa Gamma. Tibbett Tickets Going Fast Although the concert by Lawrence Tibbett is still nearly a month away, there is a steady sale of tickets so that it seems probable that all reserved seats will be sold out by concert night. May 12, Dean D. M. Swarthout said today. numbers from cities over the state as the appearance of Tibbett at Lawrence is his only appearance in Kansas this year. Reservations are arriving in large Dean Swarthout, who is manager of the University Concert Course, has written Tibbett, expressing the desire that he find it possible to be present the morning following the concert, at the all-University convocation on Fine Arts Day when Olin Downes, music critic of the New York Times, will be the speaker. TONIGHT 9:00 Play It For Fun WAHOO Play It For Profit $171.50 CASH FREE Every Winner Has Chance at All or Part of Jackpot! Always 10 Winners -ENDS TONIGHT — 2 BIG HITS- Jeanette McDonald Nelson Eddy Basil Rathbone Nelson Eddy "Bittersweet" "The Mad Doctor" In Technicolor John Howard Ellen Drew VARSITY Shows: 2:00,7:00,9:00 THURSDAY,3 Days NEW LOW PRICES ALL 15c ANY SHOWS TIME FAST! FURIOUS! FUNNY! What a mix-up! What it rilts it the most unusual, most hilarious football fricolefilmed! 2 BIG FIRST 2 RUN HITS No. 2 Thrill-a-Minute Action Wayne Morris Lillian Cornell Wm. Franklin New Six-Gun Adventures Virginia Dale, Wm. Frawley With Rob't Bob Rufe LIVINGSTON STEELE DAVIS James Stewart Rosalind Russell SUNDAY—4 Days—2 Big Hits! Also Chap. 15 Fu Manchu! "No Time for Comedy" Dead End Kids Little Tough Guys "Give Us Wings" Co-op Delegates To Convene Here Rock Chalk and Jay Hawk Co-ops will be hosts at the second meeting of the Central League of Campus Co-ops to be held on the Campus April 25 to 27. Representatives are expected from campus co-operatives in 10 states. The tentative program calls for registration Friday afternoon, April 25, with an assembly that night. Discussion groups will cover topics of education, publicity, membership administration, social activities, and recreation Saturday morning, with discussion of finance, accounting, and organization in the afternoon. Following the discussions, a business meeting will be held to elect officers and adopt a constitution with a banquet scheduled at 6 p. m. Take Senior Invitation Orders Next Week Orders for senior invitations will be taken at the business office beginning next Monday, it was announced today. The deadline for all orders has been scheduled for April 28. The invitations are available in the form of leather booklets, cardboard booklets or sheet announcements. The cover, designed by Betty Ann Leasure, fine arts senior, features Dyche Museum which is to be reopened in connection with the Seventy-fifth Anniversary celebration this spring. Faculty, Students to Attend AICE at Manhattan Several University students and faculty members of the chemical engineering department will attend the joint meeting of the American Institute of Chemical Engineers at Kansas State College, May 3.