Heiko Matthies, from the Westerwald region, works 100 meters above ground. He checks the huge blades on wind-turbines for possible damage -- and makes repairs where necessary.
Every military specialist agrees that Unmanned Aerial Vehicles, or drones, are the future of warfare - but what are the major types of drone and who makes them? DW explains.
Formula 1's teams and the FIA have agreed to introduce a protective structure, known as a "Halo," for the 2018 season. It's designed to protect drivers' exposed heads, after a series of sometimes fatal accidents.
On day six in Rio, Fiji's rugby sevens team etched themselves into the history books, gymnastics star Simone Biles clinched her second gold and Michael Phelps reached 22 gold medals.
Invenergy has filed lawsuits against Polish energy giant Tauron for $325 million. The case is a test not only for Poland's relationship with foreign investors but also Trump's 'America First' stance as he visits Warsaw.
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