Cheap "hoverboards", which are expected to be under lots of Christmas trees in Australia this year, are being blamed for a series of housefires across Europe and the US. Hoverboards, also known as self-balancing scooters, are small two-wheeled motorised platforms, similar to a Segway but without a central pillar to hold on to. They have become wildly popular overseas and are increasingly spotted on the trendy streets and bike paths of Australian cities. In America they are the hottest gift this...
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