Word: mosaic
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Then Svedberg, Wyckoff and others weighed & measured the giants by whirling them in powerful ultracentrifuges. Stanley found that the virus which causes tobacco mosaic disease in plants is a huge molecule, which was weighed by Svedberg and Wyckoff at 17,000,000 times as much as a hydrogen atom. The virus of noninfectious rabbit warts was isolated as a protein molecule weighing 20,000,000 units...
...tough question of the atomic architecture inside the molecule has yielded somewhat to the discovery that it must conform to mathematical limitations grouped under "stoichiometrical law." Stanley's tobacco mosaic virus, for example, was found to be not a long, thin chain but roughly egg-shaped...
...world 1) that a virus was a huge molecule composed basically of nitrogen, carbon, hydrogen and oxygen, weighing 17,000,000 times as-much as a hydrogen molecule, and measuring one seven-hundred-thousandth of an inch in diameter; 2) that he had crystallized a typical virus (which causes mosaic diseases in tobacco plants) by chemical treatment; 3) that he had modified the virus molecule chemically and produced other types of plant disease; 4) that he had made the molecule inactive. All this proved, said Dr. Stanley, that "a virus is a protein molecule and as such may be regarded...
...Professors. But the Cathedral of Learning kept climbing into the air. Last week, with Pitt's sesquicentennial celebration well under way, the Cathedral of Learning, now 90% complete, was opened to two days of public inspection. Into a vast, four-story-high Commons Room, whose fluted columns and mosaic floor had just been finished, Chancellor Bowman invited representatives of his students, trustees and faculty to watch a belated cornerstone laying. With Mayor Cornelius Decatur Scully and Steel Heiress Helen Clay Frick looking on, the chancellor gave the stone a proud pat of cement and two husky seniors shoved...
...built the barnyard exhibit and are at work on five others which show how different creatures see the world. To a dog all things are grey, because dogs are colorblind. Fish are nearsighted and the refraction of water distorts the feet of a fisherman standing on a bank. The mosaic structure of a fly's eye gives him a multitude of images. A turtle's world is a shifting scene of bright spots because light Attracts its eyes. A huge chameleon will turn the color of the clothes of the person who may stand before the photocell which...