Every web surfer, in the course of his or her browsing, has been forced to stop and perform this weird little task: look at a picture of some wavy, ghostly, distorted letters and type them into a box.

Thousands of people gathered near The New York times building in Manhattan to witness two people climbing the massive skyscraper.

China is sending medics to offer reverse sterilisation operations to parents who lost their only children in last month\’s quake, state media says.

The biofuel debate is electrifying the UN food price crisis summit in Rome, pitting nations against each other and risking transforming bioenergy - once hailed as the ultimate green fuel - into the villain of the piece, the root cause behind global food...

One major concern with electric cars in the minds of many consumers is that they are so light, which means that a collision with a standard bulkier vehicle is not going to end well on the part of the electric car owner.

Not surprisingly, coverage of the Mars lander that successfully touched down on Mars’ surface last week, and its apparent discovery of ice underneath its landing site, has sent the media in to a Mars craze.

If you’ve ever watched Minority Report or an episode of Star Trek you will no doubt have witnessed the sophisticated and futuristic technology we know as “voice commands”.

As Dubner blogged last week, Americans logged 11 billion fewer miles on the road in March of this year than they did in March 2007. That contributed to a cut of 9 million metric tons of carbon dioxide emitted by the U.S. in the first quarter of 2008.

DVD sales are in free fall. Audiences are flocking to pornographic knockoffs of YouTube, especially a secretive site called YouPorn. And the amateurs are taking over. What’s happening to the adult-entertainment industry is exactly what’s happening...

Australia, a staunch U.S. ally and one of the first countries to commit troops to the war in Iraq five years ago, ended combat operations there Sunday.