Word: mirroring
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Dates: during 1950-1959
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...much smaller space mirror for military purposes was seriously considered by the Nazis during World...
...Mirror's poll covered everything from loyalty oaths to the discussion of "controversial subjects." But each of the ten questions asked revealed a surprisingly high degree of fear. More than half (53%) of the teachers felt that they were not as free to discuss "all phases of social studies, history, geography, political science, and international relations" as they were five years ago. An even greater number (55½%) reported that, for fear of losing their jobs, teachers are shying away from "controversial subjects." Indeed, said one reply, "it is just too dangerous for teachers to raise questions about which...
...avoid" such topics as the New Deal, public housing, McCarthy, Communism. Some teachers (21½%) even expressed concern over talking about the Bill of Rights and the Fifth Amendment. A few (17%) were definitely afraid of "being spied upon" by loyalty investigators. Whether such timidity is justified, the Mirror did not say. But warranted or not, the unpleasant fact remained that of the teachers polled, one out of every two reported: "Teachers in Los Angeles [are] afraid to teach in the manner in which they, as trained educators, feel they should teach to best educate our children...
...rewarding project for space men, said Oberth, is to set a gigantic mirror revolving on an orbit thousands of miles from the earth. It should be about 100 miles in diameter.* Made of shiny metal foil reinforced with wire, it would spin slowly around a space residence at its hub. Since nothing in a space orbit has any weight, a slight amount of centrifugal force would keep the mirror expanded...
...Such a mirror, said Oberth. would have many useful properties. Floating most of the time outside the earth's shadow, it would shorten the earth's night by lighting its dark side. It would bathe cold countries in reflected sunlight, making them productive and habitable. If war should start on the earth below, the "aggressor" (the party not in control of space) could be handily incinerated by making the mirror concave to concentrate its beam...