Word: meter
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Dates: during 2000-2009
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...reasons curbing pollution can have so immediate an effect is that even a little dirt can do a lot of damage. A reduction of just 10 micrograms (10 millionths of a gram) of pollution per cubic meter of air - a degree of improvement many of the surveyed cities were able to attain during the two-decade-plus period - could extend human lifespans a full nine months. How small is 10 micrograms per cubic meter? Consider that simply by living with a cigarette smoker, you're exposed to a daily dose of 20 to 30. Pittsburgh, Pa., is one city...
...very lowest levels still saw health benefits from small improvements. The evidence isn't yet there to determine whether those benefits would continue growing until the fine-particle pollution got down to zero; one of the cities closest to that, Albuquerque, N.M., still hovers around 5 micrograms per cubic meter. But at this point, it doesn't seem that the benefits taper off. "If it continues to follow what we've observed, it appears that there are health benefits down to very low levels of exposure," says Pope. (See the Year in Health, from...
...meets that were in close proximity,” Harvard coach Jason Saretsky said. “I wanted to get the middle runners on the track at the Armory.” Highlighting the Crimson effort, sophomore Hilary May finished first in the women’s 3000-meter run, finishing at 10:05.31. The race marked her first collegiate 3K, as well as her first collegiate win. “The race was actually a really great way to start the season,” May said. “I talked with the coaches before...
...Katy Hinkle led the way in the backstroke, finishing in 59.81, and freshman Meghan Leddy won the IM in 2:07.76, nearly four seconds ahead of senior runner-up Linnea Sundberg. The Quakers’ only wins on the afternoon came in the 100-yard breaststroke and the 1-meter diving event.In the breaststroke, freshman Helen Pitchik finished strongly but couldn’t overcome a slow start, coming in second to Penn rookie Laura Klick. Lightbourne was third. And despite missing out on the top spot in 1-meter diving, the Crimson took the next five positions. Sophomore Marissa...
What makes things trickier still is that not all attraction is equal. Some materials are drawn much more powerfully together than others - particularly on the nano (billionth of a meter) scale. And that difference can be exploited. In the Nature experiment, the research team began by placing a microscopically small sphere of gold on a glass surface. Gold and glass get along well enough and under the right circumstances will attract. But what they both like a whole lot more is a liquid called bromobenzene. When the researchers introduced a little bromobenzene to the other two materials, they both began...