Engineering

Light, flexible, efficient: Perovskite-based tandem solar cells

Roof tiles are becoming a thing of the past: Today, more and more Swiss roofs boast large black and blue rectangles that convert sunlight into electricity. The blueish color comes from silicon crystals, as the majority of ...

Engineering

How green cities could remove CO₂ from the atmosphere

More than a thousand cities around the world now have "net zero" pledges: they want to emit only as much CO2 into the atmosphere as they can simultaneously recapture. An elaborate meta-study has now summarized the state of ...

Robotics

Paper power: Origami technology makes its way into quadcopters

Over the past decade, researchers all around the world have been finding new and exciting use cases for unmanned aerial vehicles (UAVs). Commonly called "drones," UAVs have proved their worth across many fields, including ...

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