NEWS FOCUS Agglomeration Allis-Chalmers built this 18-foot-diameter balling pan for a western cement company. The machine, which weighs about 40 tons, could also be used effectively in pelletizing iron ore Authenticated News Photo
Virus At Philco Research Laboratories, Dr. E. Richard Walwick examines a virus culture. He and other Philco scientists are studying what takes place when a cell is infected by a virus. They are also investigating the susceptibility of a virus to damage during its life cycle
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Light Level An observer checks the light level in a small model of a classroom having a window wall and overhead artificial lighting. According to a recent study, classrooms and offices that use daylight from a side wall as the primary source of light and use artificial light as a supplement have more effective illumination than rooms with overhead lighting only. Mostordinary reading and writing require twice as much illumination if it comes only from overhead sources
Handwriting At
Stephens College, an operator tests.the new equipinstalled by General Telephone Co. of Missouri to transmit handwriting by means of conventional telephone circuits. The insert shows the transmitted image
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Thin Film William G. Guldner of Bell Telephone Laboratories checks the connections to a xenon flash-discharge lamp, which is used in determining the gas and carbon content of thin metallic films. The lamp completely vaporizes the film from its substrate MAR.
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