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English Caption: 
A Swedish-German research team has successfully tested a new method for the production of ultra-strong cellulose fibers at DESY's research light source PETRA III. The novel procedure spins extremely tough filaments from tiny cellulose fibrils by aligning them all in parallel during the production process. This artist´s impression of the production of the fibers shows cellulose nano fibrils flowing through a water channel and becoming accelerated by the inflow of additional water jets from the sides. The acceleration lets all fibrils align with the direction of flow, finally locking together as a strong fiber. (Credit: DESY/Eberhard Reimann)