Working on the railroad? Using concrete could help environment

Wood or concrete? Railroads around the world face that decision as they replace millions of deteriorating cross ties, also known as railway sleepers, those rectangular objects used as a base for railroad tracks. A new report ...

Apple rumored to want to buy Twitter

As the media appearances of Twitter co-founders Biz Stone and Evan Williams have multiplied, so have rumors that the company is for sale and about to be bought.

Report examines limits of national power grid simulations

America's power grid today resembles the country's canal system of the 19th Century. A marvel of engineering for its time, the canal system eventually could not keep pace with the growing demands of transcontinental transportation.

Scientist says volcanic eruption in Congo imminent

(AP) -- Scientists found evidence of intense volcanic activity - including tremors, pools of lava and plumes of smoke - at two volcanoes near a major city in eastern Congo, and said some residents had fled for fear of an ...

Google CEO doesn't see problem with his Apple role

(AP) -- Google Chief Executive Eric Schmidt is taking a government inquiry into his role on Apple Inc.'s board in stride, expressing confidence that the probe won't find any evidence that the ties between the two companies ...

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