Seeing red OXYGEN can form molecules made of four atoms rather than two when it is squeezed to 200 000 times atmospheric pressure. Normally, oxygen is a colourless gas consisting of two atoms, but when squeezed it forms a liquid, a solid and eventually behaves like a metal. Solid nonmetallic oxygen is bright red and Frederico Gorelli … News
Humans Westminster diary THERE's a long tradition of coal mining in my part of Scotland, so many of my constituents have experience of mining diseases. For anyone whose job involves drilling away at the coalface, the constant vibrations can reduce blood circulation to the fingertips, causing capillaries to contract and sensation to be lost. The condition is known … Opinion
Life on the edge MOST people visit Australia's lush Wet Tropics rainforest to gawp at the gorgeous greenery. But in 1997, Christopher Schneider and Thomas Smith arrived with quite a different plan—and their eyes firmly on the ground. Shuffling through the forest, the two men spent four long weeks staring down at the leaf litter, watching for the flick … Features
Gifts and gore IT'S not easy being a general these days. Where do you find a good supply of impressionable warrior recruits fit for all those looming high-tech wars? The British army apparently thinks ex-cons might fill the gap. Strange, when they could be recruiting in cyber cafes instead. After all, more people play world domination in Command … Books & Arts
Feedback MANY of America's best universities are "land-grant institutions", that were originally financed by the sale of public lands. They are supposed to emphasise research and teaching that are useful to citizens of their home states, which is why they always have agriculture faculties. But a master's candidate at Clemson, South Carolina's land-grant university, recently devoted … Regulars