Word: rods
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Dates: during 1940-1949
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...William was plainly trying to spare the rod. He continued: "In England it would correspond to the 1906-09 report of the Royal Commission on the Poor Law and Relief of Distress. But, of course, it is only natural that you in America would be 30 years late in discovering the spread of unemployment and poverty because your standard of living is so much better than ours. The NRPB report simply shows that unemployment and poverty exist...
...ball powder (so called because the grains are spherical rather than rod-shaped) is formed chemically, not mechanically. It need be dry and dangerous for only a short time. Nitrocellulose, immersed in ten times its bulk of water, is liquefied by various chemicals, among them ethyl acetate, much used in nail polish. The liquid nitrocellulose rises to the surface of the water as a creamy lacquer. Stirring breaks it into globules, like olive oil in salad dressing. Other chemicals keep the tiny pellets separate. Speed of stirring determines the size of the grains of powder...
...Cones & Rods. The retina (the screen upon which the lens of the eye casts the image) has two kinds of visual cells: cones, each with its direct line to the brain; rods connected in multiple to the optic nerve fibers. The cones give sharp, color vision, work in bright light only. The rods "gang up" faint and dim impressions in weak light, catch no color. Some animals have cones but apparently no color vision; no known color-seeing animals have rod cells alone...
...dimplelike spot on the retina (the fovea centralis-literally, "central pit"), which acts as a magnifying device to spread the image over a greater number of visual cells. In this dimple, common to the vertebrates with the highest acuity (some birds have two in each eye), there are no rod cells. The cones are slim and tight-packed. The other common denominator is the mechanism for accommodation-ability to focus the eye, maintain a sharp image of a moving object...
Rule 3. He must be healthy and vigorous. He should be at ease with a fishing rod and shotgun; if possible, he should walk to work. Voters do not like to think of their President as a man subject to such drab ailments as the sniffles...