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Cyan colour hidden ingredient in sleep

Image copyright Getty Images Image caption The researchers say cyan could be added or taken away to prevent or encourage sleep The colour cyan – between green and blue – is a hidden factor in encouraging or preventing sleep, according to biologists. University of Manchester researchers say higher levels of …

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Tomorrow's Cities: Can start-ups solve city issues?

Media playback is unsupported on your device Media captionWATCH: Maps reveal hidden truths of our cities The Waterloo corridor, which runs between the cities of Toronto and Waterloo in Canada, is home to coyotes, deer and, increasingly, tech firms. Google, Research in Motion and thousands of start-ups have offices there …

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Codebreaking Bombe moves to computer museum

Image copyright Science Photo Library Image caption The Bombe was used to work out Enigma machine settings to help read German communications The UK’s National Museum of Computing has expanded its exhibits celebrating the UK’s wartime code-breakers and the machines used to crack German ciphers. On Saturday it will open …

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Arizona Uber crash driver was 'watching TV'

Media playback is unsupported on your device Media captionUber dashcam footage shows moment before fatal impact The “safety operator” of a self-driving Uber car was watching TV just before the vehicle was involved in a fatal collision, a police report reveals. The Uber car struck and killed pedestrian Elaine Herzberg, …

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YouTube fans to fund favourite film-makers

Image copyright Getty Images YouTube is adding more ways for video-makers to make money, following criticism from bloggers and increased competition from rival platforms. Many video-makers have complained that changes to YouTube’s advertising policies have made it difficult for their videos to earn ad revenue. YouTube will now roll out …

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Intel chief Brian Krzanich resigns over relationship

Image copyright Getty Images Chipmaker Intel has announced that its chief executive, Brian Krzanich, is stepping down with immediate effect because of “a violation of Intel’s non-fraternisation policy”. He had been in the post since May 2013. Intel said an inquiry had revealed that Mr Krzanich had had a consensual …

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O2 changes post policy after racist hate mail sent out

Image caption The leaflets were addressed to “Mr Isis Terroriste” and “Mr Getout Ofengland” O2 will no longer use names on some of its mailouts, after the BBC’s Victoria Derbyshire programme found it had sent racist hate mail to a British-Iraqi family’s home in north London. Two items were addressed …

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Council demanded payment card details via email

Image copyright Getty Images Image caption Residents were told they had to email in the payment form to apply for a parking bay suspension A London council’s data protection efforts are under review after it told residents to email in their payment card details for parking bay suspensions via a …

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Missing Norfolk man in 'lucky' police drone rescue

Media playback is unsupported on your device Media captionDrone finds missing man stuck in marshes A man who went missing and was found by a police drone up to his armpits in water said he was “lucky to live”. A major search was launched for Peter Pugh, 75, from Brancaster, …

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The $300 system in the fight against illegal images

Image copyright Christian Haschek A security researcher has built a system for detecting illegal images that costs less than $300 (£227) and uses less power than a lightbulb. Christian Haschek, who lives in Austria, came up with the solution after he discovered an image showing child sex abuse had been …

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