Optical fibers lit in the shape of the world map. 3D image concept of global communication by optical fiber.

Glass fibres with potential far beyond transmitting light

Fibre optics are at the heart of today’s communication systems, a number of medical devices and more. But when researchers put a silicon-germanium mix at the core of the fibre and treated it, they made something with potential far beyond transmitting light.

One can never guarantee that the use of man-made gases in cooling installations will not result in unexpected environmental problems, according to the authors of this article. They recommend using nature's own ingredients instead. Photo: Bjørn Rørslett / Samfoto
Foto: © Bj¯rn R¯rslett / NN / Samfoto

Green cooling with CO2

Man-made refrigeration gases threaten the Earth’s climate. The use of natural compounds like CO2 is an effective counter-measure.


Researching the dark side of microplastics

Minute particles of plastic, called microplastics, are everywhere. An international research team is now about to investigate how toxic microplastics are to marine animals such as plankton, crabs and fish, and to find out if such plastics accumulate in the food chain.

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