Gravity probes the hidden depths IT COULD soon become much easier to detect underground bunkers or sinkholes, say researchers in Massachusetts. The trick is to measure variations in the gravitational field. For decades, variations in gravity have been used to ferret out underground structures. The gravitational force should be slightly weaker above a hollowed-out region, so people look for places … News
Hearing aid blocked ALL babies should have their hearing routinely tested, say child health professionals. But the political system is standing in the way. Peter Baghurst, from the Public Health Unit at the Women's and Children's Hospital in Adelaide, has written about the issue in the latest newsletter of the Public Health Association of Australia. He points out … Opinion
Thought control SAM can't quite put it into words. It's not relaxation, exactly, or concentration. He wouldn't call it meditation either, though it requires conscious effort and he sits still while he's doing it. It's just a state he puts himself into whenever he senses the aura that heralds an epileptic fit. And it seems to work. … Features
Spacefaring by Albert Harrison Spacefaring by Albert Harrison, University of California Press, £18.50, ISBN 0520224531 I LIKE to think I know a reasonable amount about the physics, maths and mechanics of space flight. What I know considerably less about is the psychological side of space, which is why I found Albert Harrison's Spacefaring fascinating. In the pioneering years of … Books & Arts
Feedback IS THERE nothing left in this world that can't be patented, copyrighted or trademarked? The latest move in the stampede to slap intellectual property rights on everything that exists is the attempt to register trademarks on words that are already in everyday use. For example, a California company called Fandom has applied to the US … Regulars