Word: x-rays
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...alert Reader Singley, whose X-ray facts are substantially correct,* TIME'S red-faced congratulations for a likely solution of the "Spectral Appendectomy" mystery...
...answer was given to the question throughout the day. . . . When relating this experience to a member of the staff.* The barium shadow of the appendix can be seen often, not "rarely." But Dr. Singley's main point still holds: as proof of the absence of the appendix the X-ray test is unreliable. of Columbia University Library, she sadly bemoaned the ignorance of the average person of facts pertaining to our country. I broke in with, "Can you tell me the location of the State of Kansas?" She could not! . . . The Little Red Schoolhouse had its points...
...technique for molecular photography was originated by famed British Physicist Sir William Lawrence Bragg (TIME, Oct. 3, 1938), pioneer in the X-ray study of molecular crystals. He found that X rays, when diffracted by crystals, provide clues for calculating the pattern of atoms in a molecule. Using this information, he developed certain films, made of light and dark bands, which, when superimposed on the X-ray picture, make the atomic pattern visible. By enlargement of such a photograph, a molecule can be magnified 250,000,000 times...
Isotopes and Hafnium. The work of the chemistry prizewinner, Hevesy, was related to the physicists' researches. He studied atoms by means of X rays and isotopes (slight variations in chemical elements which differ from each other only in radiactivity or atomic weight). By X-ray analysis, Hevesy discovered hafnium, No. 72 in the table of elements...
...responsible for developing the new tube is keen, soft-spoken Raymond R. Machlett, Cornell-trained president of Machlett Laboratories of Springdale, Conn., largest manufacturers of X-ray tubes in the U.S. The firm was founded by Raymond's father, Robert, in 1897, just two years after the discovery of X-rays. Robert Machlett died in 1926 of prolonged and repeated X-ray burns, acquired in the pioneering period...