‘Morphing’ wheel from South Korea may transform lives – and robots

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DAEJEON, South Korea — Imagine a wheelchair equipped with wheels flexible enough to navigate all manner of obstacles from curbs to humps and even staircases.   Or perhaps an unmanned delivery vehicle using the same wheels that takes the stairs to deliver food and groceries right to your door.  This is what researchers from the Korea Institute of Machinery and Materials (KIMM) envision for their “morphing” wheel, which can roll over obstacles up to 1.3 times the height of its radius.   Inspired by the surface tension of water droplets, it goes from solid to fluid when it encounters impediments.  Othermore

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Chinese social media reels over woman’s illegal surrogacy case

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BEIJING/HONG KONG — A 22-year-old Chinese woman’s account of how she was lured into the country’s illegal surrogacy industry before suffering a miscarriage went viral on Chinese social media this week and raised heated debates over women’s rights and social inequality.  Surrogacy is banned in China, and authorities have vowed to severely crack down on illegal practices, including the buying and selling of sperm, egg and surrogacy services.  The incident comes as Chinese authorities grapple with how to increase the country’s birth rate as more young couples put off having children or opt to have none.  China’s population fell for amore

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