Word: shiftsã
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...near-imperceptible changes in a star’s light that are induced by orbiting planets. Planet gravity minutely affects the color of light emitted by stars they orbit by altering the star’s own movements. Such light changes—called “doppler shifts??—produce redder light when gravity nudges the star towards an observer and bluer light when gravity moves it away. But these shifts are often too small to accurately measure. “You could find Jupiters but you couldn’t find Earths...
...served with a desegregation order, mandating that the school maintain a student body whose racial makeup mirrored that of the community—at the time, 70 percent white and 30 percent minority. In subsequent years, Mark Twain was converted into a school for the gifted, and demographic shifts??notably, a decline in the proportion of white students—have forced the school to turn minority students away. Last week, however, federal Judge Jack B. Weinstein overturned the ruling: “The defendants have complied with the 1974 remedial order. Mark Twain has been desegregated...
...purposefully avoids. Why did 100 black students—many who lived in the Quad—appear so foreign to the vigilant Quadlings that day? One conventional answer is self-segregation: Black students stick to their own, so others are slow to recognize them. The blame shifts??inappropriately—to the campus’s minority groups...
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