Health Oldest dental filling is found in a Stone Age tooth Some chippings with round and smooth edges are present on the occlusal buccal margin of tooth This article is being made free to view thanks to sponsorship from P&G You may not want to try this at home. A simple wax cap that was applied to a broken tooth 6500 years ago is the oldest … News
Space Getting down with the cavenauts in training Into the darkness Sometimes astronauts head to the most unlikely places to train for the rigours of space, as NASA's Andrew Feustel reveals You just emerged from six days in a cave in Sardinia, Italy. Why were you down there? I was training with an international team of astronauts. The idea was for them to … Opinion
Technology Graphics chips are for more than just eye candy Processing the cosmos CHANCES are there is a graphics chip in your desktop computer, and it is fuelling a revolution. These chips, called GPUs, have of late been co-opted from their original use in giving video games their impressive visuals. Their talent for parallel processing is helping to speed up everything from medical imaging to … News
Beak-a-boo: Birds have their portraits taken See more: To see the image this article refers to, keep checking Picture of the Day on our news blog Short Sharp Science Regulars
Earth Busted! The myth of technological progress The history of technology holds some salutary lessons for anyone who blithely believes there is a high-tech fix for all our 21st-century problems Features
Top 10 most influential popular science books See more: An illustrated version of this article will be published within the next two weeks on our CultureLab books and arts blog CultureLab
Enigma Number 1717 On the beach Clearing my attic, I found my old 8mm cine-projector and films of our children. It still worked. The film moves through the projecting gate at an essentially constant speed from the stock spool to an identical take-up spool. The empty spool has a 4-centimetre diameter and the spool when full has a … Regulars
Feedback: Ig Nobel prize for dead fish Ig Nobel prize for dead fish FEEDBACK's favourite prizes, the Ig Nobels, were handed out on 20 September in a packed ceremony at Harvard University's Sanders Theatre. Their goal is to make people laugh, then think. Feedback is proud to say that we spotted one Ig Nobel winner in advance. The neuroscience prize honours the … Regulars