Technology Gizmo A vibrating vest for soldiers could put an end to cryptic battlefield hand signals. The spandex vest, developed by the US army, has 16 vibrating motors on its back to indicate commands such as "turn left", "speed up" or "slow down". In tests, volunteers distinguished between 15 different signals used to direct them around an … News
Health Comment: Prescribed opinions IN MID-October, an email landed in my inbox that set me thinking. It was an invitation to a meeting organised by the UK Medical Journalists' Association (MJA), described as "an evening workshop with arthritis experts". Paid for by an "educational grant" from Merck Sharp & Dohme, the UK arm of the drugs giant Merck, it … Opinion
Life Geckos: Under the colour of darkness THERE'S a German expression which translates as "all cats are grey at night". It's certainly true for humans. As night falls, the colour-detecting cone cells in our eyes switch off, the rod cells take over and the world turns to fuzzy black and white – until we go indoors and switch on the lights. It … Features
Life The word: Elvis taxon GETTING to grips with the fossil record can be a headache. When it comes to understanding how the various species fit in, palaeontologists need patience, creativity – and a touch of humour. Take the seemingly clear-cut case of extinction which, it turns out, isn't always as clear-cut as you might think. Animals that have apparently … Regulars
Space Feedback: 'Alien texts' competition winners Feedback New Year Competition results This week we publish the winning entries in our New Year Competition. The challenge was to compose a text message of no more than 160 characters, sent home by an alien who has just arrived on our planet. The 300-plus entries we received have been entertaining and thought-provoking. It has … Regulars