Z~l40 Students Crowd in Science Hail ior Wheelwrighr l'olk Polaroid Glasses Given To View Movies An astonished group of Armour students crowded Science Hall last Tuesday, November 8, and saw con- trolled light perform some amazing feats including illumination without glaring reflection, three—dimensional motion pictures in full colors, and the creation of colors in colorless materials. This strange behavior was revealed in a lecture on “Polaroid” by George W. Wheclwright, III, former instructor of physics at Har~ vard University and at present a partner in the Land-Wheelwright Laboratories, before the Armour Tech student branch of the American Society of Mechanical Engineers. Featuring the latest application of this revolutionary light control, a type of lighting that illuminates the glossicst paper without reflected glare, the scientist explained the properties of Polaroid and described the 250 years of research by the world’s most famed physicists in the effort to effect this form of light con— trol on a practical basis. No success has been achieved, he said, until the youthful Edwin H. Land perfected Polaroid. Polaroid “Combs" Light Waves Mr. Wheclwright held two trans. parent discs of Polaroid, about a foot in diameter, in front of his face on which a light was directed. Rotating, one of the discs, his face was grad~ ually obscured until it was blacked out completely by the previously transparent discs. The scientist ex— plained this ability of two sheets of Polaroid to stop light as a crossing of their invisible structures or “opti- cal slots”. He explained that science believes light to consist of waves vibrating in all directions. Polaroid confines or “combs,” those waves into one plane. When the second sheet of Polaroid is at right angles to the first, the single plane waves cannot get through the contrary “optical slots" of the Second sheet. Ute Special Glasses Actually, he explained, these slots are minute, invisible crystals—lode» sulphate of quinine—so small that they cannot be seen under a micro— scope. There are billions of them in every square inch of Polaroid. The inventor had to create these infi- nitely small crystals, said Mr. Wheelwright, and then find a way of pointing their needle-like axes in one direction and holding them in that position. This was. accomplished by placing them in a transparent, cel- lulosic matrix and stretching the sheet in a plastic state. The ability of Polaroid to elimi- nate glaring reflection, he said, is (Continued on page four) ALEE. To Visit Steel Mill briday Alternators At 10:30 Friday morning, James H. Miller, assistant superintendent of the electrical department of the Wisconsin Steel Company will de- liver a short talk on “Electrical Ap- paratus in the Operation of a Steel Mill." before the A.I.E.E. student branch. Mr. Miller will probably out- line the problems which confront the men of his department. Later in the afternoon, the senior and junior electrical students will be excused from classes for the after- noon, in order to be at the steel plant which is located one block east of Terrence Avenue on 106th street for an inspection trip through the plant. Students interested in attend— ing the trip are requested to meet at the main entrance of the steel company at 1 o’clock. V. Terp and A. Zarem are in charge of transpor— tation. Any students having room in their cars are asked to notify the men listed above. On December 2, a talk will be pre- sented by F. J. Dahleiden, of the In- sulated Wire division of the Okonite Company. Mr. Dahleiden will also illustrate his talk with samples of wire and cable. Armour Institute of Technology. Chicago. Illinois, Tuesday. November I5. I938 Armour ‘Eye’ to Present ‘Muskie’ Fishing Picture A twod‘cel movie entitled “Nihi- g‘ami Muskics” will be presented to— morrow at 12:20 in Science Hall by the Armour Eye. This picture was obtained through the courtesy of the South Bend Bait Company and is as the name implies, a fishing picture. It is a thrilling picture showing “musky” fishing at its best. Muskelongc, as the proper name goes, est of all fish found in American E Student Directory Out; 1 On Sale at Bookstore At last the long awaited school di- rectory is out. It came out this morn— ing and is on sub- in the bookstore for ten cents. This directory will be the largest ever published and will contain the names, addresses, tele- phone numbers, year, and department of 1300 students; the names, address- cs, telephone numbers, department, and room numbers of 147 faculty are among the largest and gam- members; the names, addresses, tele- phone numbers, and department of 27 waters. Their great power and jump- graduate assistants and fellows; and ing ability can tax the skill of even the names, addresses, telephone nums the best 0f fisherman. It isathrilling her, and position of 48 officers and picture of “musky” fishing at its best. ARivllSTlCE DAY ASSEMELY ll‘i OGDEN Some of the 1500 faculty members and Red Cross R0” Booth to Open In Milli Lobby The annual drive of the and tomorrow. pose of securing members. Membership will consist of two classes. One membership, involving a fee of $1 enrolls the person on the official roll and entitles him to a Red Cross sticker and button. A second class of membership, rcquir~ ing only a voluntary contribution on titles the contributor to a Red Cross button. Armour’s drive is being held in conjunction with the national drive which is held every year from Arm- istice Day until Thanksgiving day. Two movies will be shown today in Science Hall covering the subject of the work of the Red Cross. “Why Not Live,’ the subject of one film, deals with methods of accident pre- vention. The second film, “Behind the Flood Waters” covers the heroic work done by the Red Cross in times of national disaster. The American Red Cross was or- ganized in the United States in 1881. Its activities have expanded, until at the present time, it has a total of 3,700 chapters and is prepared to render aid in almost any type of emergency. The scope of the Red Cross work is indicated by the fol— lowing services. Disaster Relief, War Service, Public Health Nursing, Home Hygiene and Care of the Sick, First Aid and Life Saving, and Home and Farm Accident Preven- <1- 1011. All of the work carried. on by the Red Cross, is financed by voluntary contributions. All newspaper adver- tisements, radio programs and most of the work is freely donated. In the last year, over $10,000,000 was spent for relief work of various kinds. The work at Armounis being car- ried on under the direction of WiL liam Yeager. Red Cross to secure members for its roll call will be held at Armour today A booth is installed in the lobby of Main for the pur- employees of Armour Tech. Orders tor hoph Hackers Must Be Placed by Friday Next Friday at 11:30 will be the deadline for placing orders for soph- omore jackets. Orders will also be taken every day in the lobby of the Main Building. There are two types .of jackets, namely the campus coat type which costs $9.50, and the jack- et type which costs $7. On all orders placed with the com- mittee, a deposit must be paid. The minimum deposit for the $9.50 jacket is $3.00 and for the $7 jacket is $2.50. Measurements for both types of jackets will be taken Friday at 10:30 in the electrical laboratory on the second floor of the main building. are ‘fi students as they listened to the address delivered by President Heald at last Friday's assembly. The glee club and band are shown at the extreme right. llecd Lectures on Use oi Mari-ices at l l :30 Today This morning at 11:30 in 217 Chapin. Professor Reed will lecture on “Matrices in Electrical Networks-z.” He has published research papers in the Journal of Electrical Engineering on this subject. Matrices occur through- out modcrn mathematics, but havo just recently been applied to electri— cal networks. Illustrations will be given of the application of matrices to electrical networks. Last Friday, Professor Reed lec» tured on Calculus,” suitable. Sigma, vember 8, House. seniors were honored. who were pledged are Robert S. Kohn, Ralph H. Wagner, and Alvin The seniors are James Gil- bert Jr., Edward Grabacki, and Rob- ert A. Windblad. The men were chosen because of their high scholarships and promi- nence in school affairs. Pledge duties will start immediately. Winkler. Heaviside’s method, can also be easily solved by such methods as matrices. Pi Tau Sigma Pledges Six Into Honorary Mechanical Six men were pledged to Pi Tau honorary mechanical engi- neering, last Tuesday evening, No- in the Rho Delta Rho and three The juniors Three juniors NOTEQE All students that were enrolled last semester in the physics labora— tory course are asked to call for their reports this week. The Registrar’s office has many articles including pens, slidc~rzclos, hats, etc. lost any articles are asked to call for them as soon as possible. “Heaviside‘s Operational pointing out that the “P” operator and the ”l" functions do not satisfy the simple laws of a1— gebra which make this theory very Professor Reed feels that any problem that can be solved by Any students who have, Vagiborgfipeake at ‘nghl‘ li'lawk’ Meeting Continuing their well planned pro— gram the “Night Hawks,” evening school organization, heard Mr. Vagt- borg of the Research Foundation speak in Science Hall last Saturday. The topic was “Work of the Armour Research Foundation.” Mr. Vag‘tborg spoke on the various projects now being carried on at the Research Foundation for the concerns sponsoring the research and gave examples of the results from the projects which have been com« plated and from those which have reached partial completion. The Foundation has recently rc- ceivcd some new equipment and has rebuilt portions of the research building in order to facilitate new work. A special boiler has been built and installed in the basement which will deliver steam under very high pressures. On the third floor a dark room has been built primarily for use in the x-ray crystallography work. This embodies the novel fea~ ture of a dark corridor that permits entrance and exit without the open— ing or closing of a door or the use of the hands. Senior ficmmission Eclects All Remaining Gommittees Announced by the senior commis- sion last week was the choice of the announcement, commencement, and cap and gown committees. The mem- bers of the committees will probably convene together some time this week to elect their chairmen. The men chosen for the announce- ment committee are R, E. Dixon, R. I. Jafl'ee, C. V. Peterson, W. A. Wag- ner, C. W. Rel], W. A. Ryan, and R. A. Windblad. Chosen for the com- mencement committee were A. J. Dempsey, M. Ephraim, 13. Morris, A. M. Richardson, R. T. Smith, and E. F. Wagner. The personnel of the cap and gown committee is W. B. Buckman. T. A. Clark, L. Strocchia, and Dick Vandekieft. The men were chosen from a list of names submitted to the commission : by those who desired the positions. Vol. XXII. No. 9 [Students blather on Qigden Field in “Sol Means to Tour Electrical Co. This Thursday An inspection trip through the Chi- cago plants of the Hotpoint Electri- cal Company, will be made this Thursday, by the senior members of: the A.S.M.AE., at 2 o'clock. All senior mechanical engineering students will be excused from classes to enable them to attend the trip. An invita- tion has been extended to all junior members, who have no classes on that afternoon, to attend the trip. Regis- tration, for the trip, must be made with any member of the inspection trip committee before Thursday. The group will meet at 2 o’clock at the plant located at 5700 West Taylor Street (000 8.). The trip has been planned in conjunction with the Busi— ness Policy course, at Armour and will Show the production problems and control, unique to the manufac- ture of domestic electrical appli- ances. According to the inspection trip committee, the best transporta- tion includes either the Garfield Park elevated or the Roosevelt Road street car direct to the plant. Pro~ fessor Nachman, faculty chairman, will accompany the group. At the next meeting of the society, which will be held Friday at 10:30 a.m. in Science hall, several reels of motion pictures, titled, “Earth Mov- ing,” “Power for Oil Fields,” and “Acres of Rice” will be shown through the courtesy of the Inter— national Harvester Company. Last Friday, November 11, the members of the senior engineering classes were invited to attend the annual Automobile Show meeting at the Saddle and Sirloin Club of the Stockyards Inn at 8 pm. This in- vitation was extended to Professor D. Roesch, by D. E. Gamble, chair- man of the Chicago section of the Society of Automotive Engineers. A feature of the, evening was the speech by Joe Goschelin, Technical Editor of Automotive Industries, who described the new features of the 1939 motor cars. Mr. Gcschclin is intimately acquainted with both the engineering and production di— visions of all the motor car com- panics. Three New bolas For Physicists Enlargement of the physics depart- ment is rapidly nearing completion. Necessity for greater laboratory space was realized when overflow sections were held in the laboratories. Al. this time, three advanced physics laboratories, new offices, a machine shop, and shop for class apparatus have been completed. At the present time, the new lab- oratories are being used for research on the production of vitamin D by electrical methods. These experi— ments are being conducted by Dr. Thompson. An extension of the number of courses offered by the physics depart- ment has taken place as part of the expansion program. Four graduate courses in advanced physics are being given by Professors Copeland, Zeig- 191', Thompson, and Jakob. A course in advanced mechanics is being offer- ed as an undergraduate course by Mr. Potter. A number of lectures on subjects pertaining to physics will be given in the Chicago urea in the next few weeks. “Determinism in Physics” will be given by Bertrand Russel, famous English mathematician and philos~ opher, at the International House Auditorium, on November 25. This talk is given under the auspices of the. Physics Club of Chicago. Dr. Thompson will also give a series of leaturcs on “Radium and Radioactivity” at the Wilson and ' Wright Junior Colleges. emu Armistice @eremony , _ President Hamid Addresses Large Assembly Standing; with bored heads, facing toward the cast, last Friday at 1]. o’clock on Ogden Field, eleven hun— rcd Armour men paid solemn trib~ ute to those who made the supreme sacrifice in the Great War. Particu» larly honored by the ceremony were those Armour men who gave their lives in the cause of democracy. These men were: Jean Pierre Bach and, ’17; Charles Abbott Dean, ’14; Stanley Dczm, ’06, who was also a member of the faculty; Jasper J. French, ’19; Claude Hill, ’10; Einar L. Nielsen, ’10; Reuben L. Paskill, ’17; and Enoch N. Severin, ’15. At 10:30 the entire student body formed according to classes on both sides of Federal iStreet. Led by Mar» shalls chosen from each group the students marched on to Ogdcn Field in a body to stirring marches played by the band. Hand Offers Selections When the entire group of stu— dents was assembled the band played scvcral numbers following which the glee club sung America, the Beauti- ful, and Antonino. The speaker was President Heald who in a stirring oration depicted the horrors and suffering of the last war. He told of the part which Ar- mour played in the service 01' its country and of the various activities of Armour men who heeded their country's call. Clause» Diominoed for Day At 11 o’clock the entire assembly faced cast while for in the distance a trumpeter played Tops. Following the eleven o’clock pause President l-Iculd concluded his talk by saying that the only thing that the World War ever did for the world was to furnish the finest argument for peace that has ever been formulated. ’l‘hcn', in accordance with previous Armour traditions, classes were dis- misscd for the (lay and the student body disbanded in an orderly man- her. This year’s assembly marks the in- auguration of a new plan for the Ar- mistice Day ceremony. In previous years there has been an outside speaker present, but from now on the ceremony will be an all-Armour of- fair. lole oi Architect In Slum Clearance The last of the present dramatic series on the “Engineer" in his vuv ricd fields of endeavor stressed the architect and his contribution to a more complete life for the socially underprivileged. The program was devoted to the architect as a man of imagination who treats with the so- cial aspects of housing. Today there are millions of people who live in districts in which sanita- tion and cleanliness have been neglected. These factors, so essen- tial to decent living, tend to drive despair and disease into the home. It is these homes from which chil- dren are born to continue in this same path of unpr‘ogrcssive activity. Tmlays' housing projects have given people the opportunity to de- velop in an atmosphere that is clean and wholesome. The odors no long— or permeate the air and the windows are no longer dirty; cleanliness has produced a new view on the once gloomy horizon. The modern planned housing project has its open courts, its airy rooms, and its playgrounds as a result of the imaginative plan‘ ning- nnd understanding of one man. the architect. The architect is a man who contributes much to n hap- pier. more complete social life. The second series beginning No- vember 19th will again bring: the in— teresting: phases of the various branches of engineering. dealing with each in a more detailed mam ner. The “\Virephoto" will be the first followed by “The Golden Gate Bridge. the D" every of Radium. and the Trans :2 of Electricity,"