Feb 1949

Page 33

THE SCIENCE SOCIETY President: E. K. ROBINSON, EsQ., B.Sc. Hon. Secretary: R. J. GIBSON. Hon. Treasurer: M. A. CROSS.

Five meetings on varied topics were held this term. The first was on 25th September, when a lecture on photography was given by Mr. Thos. H. Mason, an exhibition of whose photographs was held at the end of the previous term. After giving some advice for taking photographs he projected on the screen some slides taken by himself, most of which were in Kodachrome. He had some very beautiful photographs, including some of the Lake District, Scotland, Knaresborough, Barnard Castle, Dartmouth, Kirkham Abbey, Torquay, and some very good ones of the "Moorlands", a pleasant garden stretch just outside York. He included several slides in which he had made mistakes, pointing them out. His last five photographs were of York itself. Questions were asked during the lecture and at the end. Mr. Robinson was in the chair. The second lecture, on 9th October, entitled "Aeronautics", was given by Mr. Harris. He described how experiments were made in wind tunnels, and went on to explain about aerofoils, the cross sections of the wing. He described how if flaps and slots are used a greater angle of attack can be obtained without the plane stalling, and by means of the epidiascope showed several graphs to illustrate lift and drag, and the angle of attack for different aerofoils. He described how a plane landed, and how planes looped the loop, went into spins, and turned by banking. He also told us about the three axes of the plane, about which it could turn by movement of the ailerons, elevators and rudder. The talk was illustrated with the epidiascope, and by a model. Questions were asked at the end. There was a large attendance, and Mr. Crews was chairman. The business meeting was held at the end of Mr. Harris' lecture. A senior, a middle, and a junior representative from each House were elected on to the Committee. The treasurer and secretary were re-elected. The third meeting was held on 23rd October. Three films were shown entitled "Roots", "Civil Engineering", and "The Story of Ceylon". The first film showed the growth of the root from the embryo. The sensitive tip could clearly be seen. The growth of the root hairs, etc., were also shown. The second film, "Civil Engineering", described the many tasks under civil engineering, and explained how a power station is built from the surveying of the site to the finished building. The third and last film, "The Story of Ceylon", was about Ceylon from early days to the present day, showing the life of the people, their religion, and their ceremonial dances. Weird Eastern music accompanied the film throughout. :

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