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Wind-power estimates have been made before, but the PNAS team drilled them down to greater detail. Using a simulation of global wind fields from NASA's Goddard Earth Observing System Data Assimilation System - a network of complex computer systems used to simulate and predict meteorology - McElroy and his colleagues could map the distribution of wind resources around the globe, then calculate how much electricity could be produced by tapping those breezes with current turbines, which can generate about 2.5 megawatts on land, and larger turbines that can generate 3.6 megawatts offshore. (Offshore winds tend to be stronger and more...
...even in Chicago, there are days when the wind doesn't below. But both those hurdles can be sidestepped by building a more modern and supercharged electrical grid, one capable of funneling wind-generated electricity from the middle of the country to the coasts. A dense and more connected network can also compensate for intermittency, with wind turbines in one part of the country backing up those in another. (See 10 things to do in Chicago...
...tracking down charts. The staff cafeteria even gives away fruit, illustrating Mayo's apple-a-day commitment to prevention and wellness. Like other low-cost, high-quality institutions - the Cleveland Clinic, Geisinger in Pennsylvania, Intermountain in Utah - Mayo is dedicated to offering integrated and coordinated care, with a broad network of providers working together to reduce redundant tests and office visits, improve disease management and generally avoid treating patients like pinballs. "It's a team sport here," says David Lewallen, a Mayo orthopedic surgeon. "A bunch of tennis players doing their own thing just doesn't work...
...terms of preparing for HSR. Florida, for example, already did most of the spade work, including land acquisition and environmental-impact and ridership studies before Bush quashed its first HSR effort five years ago. Californians have approved a $9 billion bond issue to finance an ambitious 800-mile network that could ultimately cost as much as $45 billion and would not only zip passengers between Los Angeles and San Francisco in less than three hours but would ferry them to Sacramento and San Diego as well...
...last week, I was cut off from most forms of communication altogether: mobile-phone text-messaging had already been blocked on the day of the election, and as the week went on, the entire mobile network was cut off from about late afternoon until midnight, the time when most demonstrations were being staged, making information-gathering from would-be participants impossible. Later, Internet connections were reduced to snail speed, and satellite television was almost entirely jammed. It was becoming impossible to report on events. The only "news" left unblocked was that propagated by state television. (See pictures of the turbulent...