Technology Robots surf the web to learn about the world SHUT your eyes and picture a Buddha's hand citron. Chances are you can't, unless you happen to know it's an exotic yellow, tentacled fruit that looks a bit like a small bunch of bananas. The exercise gives a taste of what it's like for robots, which struggle to "picture" almost every word or phrase they … 51¶¯Âþ
Life Comment: Racial alchemy OF ALL the genetically determined traits that we might one day hope to control, skin colour is surely one of the most politically explosive. What might the consequences be for society if we could alter our skin colour at will? Would it prove the superficiality of race, bringing centuries of prejudice to an end? Or … Opinion
Life Stars of the Sahara IT DOESN'T look like much today, just a faded outpost on the edge of the Sahara, but back in the 15th century Timbuktu was the height of luxury and sophistication. Traders made their way across the baking desert to sell gold, ivory, slaves and salt, and scholars gathered to trade books and exchange ideas. Explorers … Features
Space Review: Rocketeers by Michael Belfiore IF THERE is one phrase that describes the emerging entrepreneurial space industry – sometimes called NewSpace – it is "unrealised promise". The possibility of low-cost access to space, including trips by ordinary people (albeit with not-so-ordinary bank accounts), has fired the public imagination. Since the media hoopla over the SpaceShipOne flights that snagged the Ansari … Books & Arts
Feedback Prize-winning scams TOO often, receiving a Nobel prize happens at the end of an eminent scientific career, but that's certainly not true for the winners of the 2005 Ig Nobel prize in literature. The internet entrepreneurs of Nigeria continue to expand on the bold series of short stories, distributed by email, that earned them their … Regulars