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For the first time, a full-scale load-bearing bridge capable of supporting people was built entirely by autonomous, programmed quadcopter drones. The Swiss research team is shown walking across the Dyneema rope fiber bridge. Watch the video here. The project was conducted at the Institute for Dynamic Systems and Control, ETH Zurich Gramazio Kohler Research, ETH Zurich.  --Story and photo via David Place, NPS Research Associate