Natural science

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Væpnet med blyant og papir avviste Simen Ådnøy Ellingsen nylig en 127 år gammel sannhet. Foto: Øyvind Buljo, NTNU

A new solution to an age-old equation can improve ship efficiency

It’s been this way for 127 years— the V-shaped wake pattern behind a ship moving in a straight line always has the same central angle. But a Norwegian armed with a pen and a piece of paper has discovered that in certain situations, a boat’s wake can actually be found in front of the boat.

We know that hormone mimics are harmful to us, and that they don’t break down naturally", says Per Stenstad.  They  accumulate in waste water and soil". Photo: Thor Nielsen.

Capturing false hormones

They damage our ability to reproduce, and they pollute the natural environment. Yet chemicals known as hormone mimics can be found in consumer goods. Eventually they end up in our water. But we now have a way of capturing them.

Brown trout or sea trout.
VIDEO

The secret life of the sea trout

Armed with special acoustic tags, a team of researchers is following 50 individual fish for as long as seven months to learn more about their life – and death — in Norwegian fjords.

Northern lights

Secrets of the High North

The Norwegian arctic island archipelago of Svalbard offers scientists the chance to investigate some of the most intriguing – and perplexing – puzzles facing the high north.

Photo: Thinkstock

Save the planet? Stop eating meat.

Growing and producing food make agriculture and food consumption among the most important drivers of environmental pressures, including climate change and habitat loss.