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Bildet er fra en demonstrasjon i Washington DC i april 1971

The Long Peace most likely began during the Vietnam War

The famous cognitive psychologist and best-selling popular science author Steven Pinker has described the period after World War II as "The Long Peace". But statiticians Nils Lid Hjort and Céline Cunen at the University of Oslo crunched all the numbers about interstate wars and found that "The Long Peace" in fact started later – during the Vietnam War. When Pinker read about their research, he was impressed.

The strange genetics of the fish that never grows up

The world's smallest fish lives like a larvae throughout its whole life. It thrives in peat swamp forest waters that are as acidic as Coke, with the same colour as tea. But the really strange discovery is that the "baby carp" has a genome lacking a lot of important bits.

Anne Hope Jahren, Bill Hagopian, Jahren Lab

Preparing spruce for climate changes

Living spruce and fossilized bits of wood from Viking burial sites hide a number of secrets. They can be crucial in research on climate change.

Adult male Bale monkey feeding on young highland bamboo shoot.

Bamboo-eating Bale monkeys could still be saved from extinction

The Ethiopian Bale monkey looks like the recipe for an endangered animal species: They prefer to eat only one kind of bamboo, their forest habitats are shrinking, and local farmers kill monkeys trying to find food on cultivated fields. But the monkeys could still be saved, says Addisu Mekonnen.


Landing on icy runways made safer with Mathematics and Big Data

Airline pilots have a difficult task when landing airplanes that can weigh over 60 tonnes, with landing speeds exceeding 270 km/h, on icy runways in winter. To make the landings safer, 16 Norwegian airports have installed information systems that allow the pilots to distribute the braking power between the plane's three available systems in the safest way possible.