Energy & Green Tech

Turning pine needles from fire risk to renewable fuel

The flammability of pine needles, a major fire hazard in the coniferous forests of India's vast sub-Himalayan belt, makes them an abundant source of renewable energy, say researchers.

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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