Energy & Green Tech

Generating clean electricity with chicken feathers

The food industry generates enormous amounts of waste and by-products, including from poultry production. Each year, some 40 million metric tons of chicken feathers are incinerated. This not only releases large amounts of ...

Engineering

An inkjet printer to produce optical filters and mirrors

Telescopes, light barriers, cameras, laser measurement technology, or smartphones: In many devices and systems, optical filters ensure that light is reflected or transmitted depending on its wavelength. Researchers at Karlsruhe ...

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