Dubai port operator DP World is buying a $50 million stake in US tech start-up Hyperloop One. Los Angeles-based Hyperloop One is gearing to build a futuristic transport system that will move people and goods through a vacuum tube at more than 1,000 kilometres per hour. Apart from DP World, 137 Ventures, French National Rail Company and GE Ventures have made their contributions, taking the total funding to $160 million.

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