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• Germanium made laser compatible

  Researchers from ETH Zurich, the Paul Scherrer Institute (PSI) and the Politec-nico di Milano have jointly developed a manufacturing technique to render the semiconductor germanium laser-compatible through high tensile strain. In their article they reveal how they can gen-erate the necessary tensile more

• New material gets itself into shape

  Plant components that bend, roll or twist in response to external stimuli such as temperature or moisture are fairly commonplace in nature and often play a role in the dispersal of seeds. Pine cones, for instance, close their scales when wet and open them again once they have dried out. André Studar more

• Ketchup turns somersaults

  Blood, paint or ketchup are complex liquids composed of several different components. For the construction of pumps, or the improvement of technical processes scientists and engineers need description models. They make the special properties of such liquids predictable. Researchers at the Technische more

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