An abrupt end to the saurian saga DINOSAURS really did go out with a bang, say researchers in Wisconsin. While many palaeontologists think a meteorite impact 65 million years ago led to the great reptiles' abrupt demise, others claim that the creatures were already on the verge of extinction, citing a supposed lack of dinosaur fossils in rocks laid down in the … News
Westminster Diary WHEN asbestos was banned from vehicle brake pads more than a decade ago, copper was the replacement. Now a study by the Swedish Environmental Protection Agency finds that the concentrations of copper on the roadside verges are two or three times as high as background levels, and increasing (New Scientist, 1 April, p 19) . … Opinion
Out in the cold THE UNIVERSE is the way it is because if it weren't we wouldn't be here to see it. Profound insight or empty truism? This is the "anthropic principle", and in the past few years it has been embraced by many cosmologists to explain some of the most mystifying features of the Universe. But it leaves … Features
Put this in your pipe Can you become dependent on cannabis? Many users would deny it, pointing to the lack of a clearly defined withdrawal syndrome. Yet up to half of those who use the drug daily find it difficult to cut down, and continue to use it despite the problems it throws up in their lives. In The Science … Books & Arts
The Last Word Frazzled Question : Why do people get grumpy when they are tired? Does it require more energy to be cheerful or something? Answer : If you are tired, communicating with other people is an effort. Your grumpiness discourages them from trying to be sociable. Conversely, if you are cheerful, they are more likely to talk … Regulars