A team of physicists in the United States has made an important step towards making quantum computing a reality. Research into a new type of noiseless quantum information bit, or qubit, is published today in the joint Institute of Physics and German Physical Society journal, New Journal of Physics.

At a sub-atomic scale the laws of quantum physics lead to strange new properties of matter. For several years physicists have been trying to exploit this quantum weirdness to build a new type of `

Joint work with IETF produces XML-based solution for digital signatures, foundation for Secure Web services

The World Wide Web Consortium (W3C) has issued XML-Signature Syntax and Processing (XML Signature) as a W3C Recommendation, representing cross-industry agreement on an XML-based language for digital signatures. A W3C Recommendation indicates that a specification is stable, contributes to Web interoperability, and has been reviewed by the W3C Membership, who favor its widespread

Tyrannosaurus rex , Apatosaurus and the other dinosaur giants capture the popular imagination. But paleontologists often focus on smaller fry – especially with regard to the origin of birds, which are believed to have evolved from petite, predatory dinosaurs. Researchers describe one such specimen — the partial skeleton of a previously unknown genus of chicken-size dinosaur that roamed China’s Liaoning province nearly 130 million years ago — today in the journal Nature. According to

’Sleeping your life away’ could be more than a saying.

Excessive sleeping may increase your risk of an early death by up to 15%. So hints a new analysis of data collected on one million people by the American Cancer Society. The figures cast doubt on the reputed benefits of eight hours’ sleep a night.

People with the longest lives get only seven hours of sleep each night, find psychiatrists at the University of California, San Diego 1 . Why seven is the magi

Atmospheric carbon dioxide is lower at the weekend.

The climate-monitoring station on Mauna Loa volcano on Hawaii, 3,400 metres above sea level, could hardly be farther away from it all. Yet even here there is no escaping the weekly rhythm of modern life. The observatory records lower concentrations of carbon dioxide in the atmosphere at the weekend than during the week.

Because there is no known natural cause of such a seven-day cycle, Randall Cerveny of Arizona State Univer

Monkey tests hint compound could paralyse malaria parasite in humans.

A new-found chemical can root out malaria parasites hiding in red blood cells and stop them reproducing. It may become a much-needed new weapon in the war against one of the world’s biggest killers.

The compound clears monkeys of infection with the human malaria parasite Plasmodium falciparum at doses far lower than existing antimalarial drugs. But testing in humans is a few years away at least, say