London, Jan 8 : A team of scientists has observed a quantum effect that causes objects to repel one another, which could be used to lubricate future nanomachines.
According to a report in New Scientist, the team detected the weak repulsive force when they brought together a thin sheet of silica and a small gold-plated bead, about half the diameter of a human hair.
The force is an example of the Casimir effect, generated by all-pervasive quantum fluctuations.
London, Jan 8: The safest way to stop fraudsters stealing information from old computer hard drives is to "destroy the PC with a hammer", a consumer magazine has said.
The computing magazine Which? recovered 22,000 "deleted" files from eight computers purchased on eBay.
They then used specialist software to recover files that the original owner had deleted, reports the Daily Express.
Sarah Kidner, editor of Which? Computing, warned that the risk of becoming a victim was increasing.
London, Jan 8: Chemical engineers in the US have created the world''s smallest working fuel cell, which may lead to the development of environmentally-friendly portable gadgets in future.
At just 3 millimetres across, future versions of the tiny hydrogen-fuelled power pack will be able to store more energy than batteries and that too in the same space.
Still, it's easier to make batteries at the small scale than the pumps and control electronics of a fuel cell.
In fact, small pumps tend to utilise more energy than they generate.
HTC, a leading Tiwan based mobile company has announced the introduction of its HTC Touch HD handset, which is basically an internet and entertainment focused mobile.
This newly launched sleek looking gizmo comes packed with 5 mega pixel camera that not only offers unparalleled video viewing experience but also has an auto focus capability.
The handset also features 3.5mm headphone jack for audio-out. Through this jack users can connect the mobile to any headset of their choice or other audio equipment.
On Monday, the Twitter accounts of US president-elect Barack Obama, singer Britney Spears and other prominent figures were hacked which further led to sending of fake messages from their accounts to the micro-blogging service.
It was confirmed by Twitter founder Biz Stone, in a post on the official company blog that a total of 33 Twitter accounts had been hacked including those of Obama and Rick Sanchez, a CNN television anchor with tens of thousands of followers.
London, Jan 6 : Scientists at the National Ignition Facility in Livermore, US, are preparing to fire the most powerful laser in history at a tiny target on the ground, in order to understand what conditions are like at the centre of the Earth.
According to a report in the Telegraph, the laser, which is as powerful as 10 billion lightbulbs, would alter the composition of the soil sample, making it represent the conditions at the core of the planet.
London, Jan 8 : A team of scientists has observed a quantum effect that causes objects to repel one another, which could be used to lubricate future nanomachines.
London, Jan 8: The safest way to stop fraudsters stealing information from old computer hard drives is to "destroy the PC with a hammer", a consumer magazine has said.
HTC, a leading Tiwan based mobile company has announced the introduction of its HTC Touch HD handset, which is basically an internet and entertainment focused mobile.
On Monday, the Twitter accounts of US president-elect Barack Obama, singer Britney Spears and other prominent figures were hacked which further led to sending of fake messages from their accounts to the micro-blogging service. 
London, Jan 6 : Scientists at the National Ignition Facility in Livermore, US, are preparing to fire the most powerful laser in history at a tiny target on the ground, in order to understand what conditions are like at the centre of the Earth.
