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  • Save battery life on smartphone with a variety of battery saving tips

    How to improve smartphone battery life: 5 tips to make your phone's battery last longer - and the battery saving myths that won't help at all
    Fed up with charging your phone every night? We offer some simple tips and tricks you can use to make your phone's battery last longer, plus point out the battery saving myths that won't help you at all.

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  • US Christmas lights consume more energy than entire countries

    Christmas lights bring that festive cheer on everyone’s face, right? Well, they might seem to you after reading this report.

    American household Christmas lights, a favorite holiday tradition, use up more electricity than some poorer countries — such as El Salvador or Ethiopia — do in a year.

    Bright lights strung on American trees, rooftops and lawns account for 6.63 billion kilowatt hours of electricity consumption every year, according to a recent blog post by the Center for Global Development.

    That’s more than the national electricity consumption of many developing countries. El Salvador for one, uses 5.35 billion kilowatt hours, while Ethiopia consumes 5.30 billion and Tanzania 4.81 billion.

    The researchers, Todd Moss and Priscilla Agyapong, used data from a 2008 US Department of Energy report and the World Bank to carry out their research.

    They added that the 6.63 billion kilowatt hours used by US Christmas lights represents only 0.2% of yearly US energy consumption, or enough power to run 14 million refrigerators.

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    by,Wudeneh Alemu

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  • Scientists say left-handed people may be smarter in one key way

    Who's smarter — righties or lefties?

    As is so often the case with social science research, the frustrating answer is "it depends."

    But there are certain cognitive domains where left-handed people do seem to excel. One such area is called "divergent thinking," or the ability to generate new ideas based on existing information.

    That's according to 1995 research by psychologist Stanley Coren, which was cited more recently in a New Yorker article. Coren conducted several experiments that suggest left-handedness is associated with superior divergent thinking, at least in men.

    In one experiment, nearly 1,000 men and women had to think of ways to combine two commonplace objects not typically used together, like a pole and a tin can. In another, participants had to organize a series of words into as many different categories as possible.

    Results showed that left-handed men performed better on these measures of divergent thinking than right-handed men — although there was no such difference for women.

    Coren was able to effectively rule out the possibility that lefties are simply smarter overall by administering a test of convergent thinking, which involves applying existing knowledge and rules to come up with a correct answer. Participants had to indicate which word in a series didn't fit the pattern — and righties performed slightly better.

    In the paper, Coren notes that his results might help explain why lefties are more common among mathematicians, architects, artists, and chess experts.

    More recent research, cited in the New Yorker article, has found that lefties demonstrate superior spatial skills, mental flexibility, and working memory.

    Although none of these findings prove that lefties are more intelligent, they do suggest that they have certain cognitive advantages. Those advantages may influence not only their performance in psychological experiments, but also the professional paths they pursue and the areas they thrive in.

     

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  • Facebook will use a satellite to deliver internet access to Africa

    Facebook's founder is planning to launch a satellite to deliver internet services to remote parts of Africa under his controversial Internet.org scheme.

    In a post on the social network, Mark Zuckerberg said he hoped the move would connect "millions" to the internet.

    The satellite, due to launch next year, is currently being built under a partnership with French firm Eutelsat.

    It would allow mobile users to download an app containing free data access to selected services, including Facebook.

    The decision underlines the scale of the billionaire's ambition to boost connectivity in emerging internet markets but the scheme has been met with opposition in many countries such as Uganda, India and Indonesia.

    Critics argue that it risks damaging investment by competing mobile operators and the principle of net neutrality because only selected services will be available by Internet.org.

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  • Facebook launch one of its most requested features a "dislike" button soon

    Facebook is building a dislike button, CEO Mark Zuckerberg said in a public question-and-answer session on Tuesday.Zuckerberg said, ‘We’ve finally heard you and we’re working on this and we will deliver something that meets the needs of the larger community.’

    ‘People have asked about the “dislike” button for many years, and probably hundreds of people have asked about this, and today is a special day because today is the day that I actually get to say we are working on it, and are very close to shipping a test of it.’

    Zuckerberg said that the company hoped that the button wouldn’t be used to be negative – but for people expressing empathy.

    He said, ‘Not every moment is a good moment. If you share something that’s sad like a refugee crisis that touches you or a family member passes away, it may not be comfortable to like that post…I do think it’s important to give people more options than liking it.’

     

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