Ski jump: Flying or falling with style?

If you or I jump in the air as high as possible, we can stay off the ground for about half a second. Michael Jordan could stay aloft for almost one second. While there are many events at the Winter Olympics that feature athletes ...

Amazonian river winds unraveled by air pollution observations

River winds are induced by the daily thermal contrast between the land and the river. During the daytime, warmer temperatures over the land lead to lighter air masses that are lifted. The air masses in turn drive onshore ...

Radioactive cloud over Europe had civilian background

A mysterious cloud containing radioactive ruthenium-106, which moved across Europe in autumn 2017, is still bothering Europe's radiation protection entities. Although the activity concentrations were innocuous, they reached ...

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