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 ...

Researchers develop cryogenic coffee grinding technology

Skoltech Ph.D. Dima Smirnov and his colleagues from St. Petersburg, Alexander Saichenko, Vladimir Dvortsov, Mikhail Tkachenko, and Maxim Kukolev developed a cryogenic cooling technology and combined it with a cryogenic grinding ...

Seeing inside superfog

While prescribed fires are common tools in wildland management, a combination of smoke and fog, known as superfog, has in some cases crossed over major roadways, leading to multicar pileups and fatalities in visibility of ...

Can we have a fire in a highly vacuumed environment?

Toyohashi University of Technology researchers have discovered that non-flaming combustion (smoldering) of a porous specimen can be sustained, even under nearly 1 percent of atmospheric pressure. The thermal structure of ...

Bringing the heat out of the city

Heat waves are increasing worldwide—and that includes Switzerland. Cities in particular suffer as a result: the temperature difference between city and countryside can amount to several degrees. A new water tunnel at Empa ...

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