Technology Cursor control at the tip of your tongue Steering a wheelchair with your tongue sounds impressive enough. Doing so with your mouth closed and gadget-free is the feat allowed by a tongue-tracking earpiece due on sale later this year. Typically, quadriplegics must suck or blow into a straw to steer a wheelchair or move a computer cursor. That can be unhygienic and irritating … News
Space Comment: How not to save the planet HOW should we protect ourselves from asteroid strikes? Not in the way NASA suggests. In its recent report on this question, the agency is evasive about how it might search for incoming asteroids and has plumped for the most dangerous method of deflecting them. We know that so-called near-Earth asteroids (NEAs) pose a real threat. … Opinion
Life Persistent vegetative state: A medical minefield IN JULY 2005, a 23-year-old British woman was involved in a horrific road accident. She was taken to hospital in a deep coma with a serious head injury. After an operation to relieve the pressure on her brain, she gradually woke up, but only to what's been called a "living death" – a condition known … Features
Physics The word: Zitterbewebung YOU don't generally think of electrons as nervous. Yet observe one closely enough and that is exactly how it might appear. As it zips through the vacuum, the lightest known fundamental particle displays a super-fast trembling motion whose name every Scrabble player in the world ought to have firmly in the front of their mind: … Regulars
Feedback Oil, the greatest gift THE search for alternatives to fossil fuels continues apace. So delegates at Canada's Gas & Oil Exposition 2007 in Calgary, Alberta, were thrilled at the prospect of a presentation from S. K. Wolff, speaking for the US National Petroleum Council – which advises the Department of Energy on behalf of the … Regulars