Word: speeded
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...previously thought - revolving around the center of the Milky Way at 568,000 m.p.h., announced Mark Reid of the Harvard-Smithsonian Center for Astrophysics on Monday at the American Astronomical Society's conference in Long Beach, Calif. Since velocity is related to mass, the 15% increase in solar-system speed translates into a near doubling of mass of the Milky Way, according to Reid's group - and all of that newfound bulk is composed of dark matter...
Original estimates of the solar system's speed were based on what Reid calls "one-dimensional velocity" obtained solely from Doppler shifts. "Now," he says, "we have three-dimensional velocity and more exact measurements" - a huge advancement in the field. The findings debunk the notion that the Milky Way is a little-sister galaxy to her neighbor Andromeda. "They're more like fraternal twins," Reid says. And the fact that they are of equal size increases the likelihood that the two will someday collide. (See the Top 50 space moments since Sputnik...
Studies have shown that diabetes may speed up aging-related deficits in mental function and lead to a twofold increase in the risk of dementia. Some researchers have speculated that diabetes could even boost the risk of developing Alzheimer's disease. Roger Dixon, a psychologist at the University of Alberta in Canada, wanted to learn whether this was true and set out to study exactly how uncontrolled blood sugar affected the brain...
Dixon and his colleagues studied 41 adults with diabetes and 424 healthy adults between the ages of 53 and 90, and reported their findings in the journal Neuropsychology. After testing the participants on memory, recall, verbal fluency, executive functions involving critical thinking and the speed of their mental faculties, researchers found the most significant deficits in diabetes patients on tasks of executive function and speed. These problems showed up in the youngest patients as well as the older ones, and once the cognitive symptoms appeared, they did not seem to worsen or change over time. Although Dixon's study failed...
...that's big enough to cause political peril; no one knows for sure if the stimulus package can be passed in the size or with the speed that economists say the nation needs. Democrats say they want the stimulus to be bipartisan, in part to grant political cover if the bill fails to jump-start the economy. In the House, this is largely an optional position, but in the Senate, where Democrats do not hold a filibuster-proof majority, bipartisanship is required...