Venerable worms THE ancestors of major animal groups may have existed 700 million years earlier than biologists realised. The fossil record suggests an "explosion" of animal life 530 million years ago, when many groups appeared. But a team led by Blair Hedges of Pennsylvania State University has traced the origins of nematode worms to 1.2 billion years … News
Bit before it? ANYONE who invested in information technology stocks will have seen their shares rocket recently. After years of hype, the information revolution is finally here. As the futurist George Gilder points out, telecommunications networks carry more valuable goods than all the world's supertankers. Yet despite the practical and financial importance of information, its nature remains obscure. … Opinion
Quantum melting pots HUMANKIND waited a long time for bronze. But when it arrived, it brought a revolution that changed civilisation for ever. Then came iron with its hard edge for swords and ploughshares and, later still, steel helped to usher in the Industrial Revolution. During the 20th century the pace quickened. In less than a hundred years, … Features
Water we count on CAN I drink this water? Is it safe to bathe here? These are perennial questions to which we should expect instant, easy, inexpensive and reliable answers. So it is surprising, given the importance of clean water, that we still rely on archaic analytical techniques to test water for disease. For more than 100 years, we … Forum
Feedback NOT MANY people know this, but January and March this year will each see two full moons, while February will have none at all. According to Keith Dawson's website, Tasty Bits from the Technology Front ( www.tbtf.com ), this happens far more rarely than once in a blue moon. Blue moons—the second full moon in … Regulars