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Physics - Mechanical Engineering - 05.03.2021
Giant ’quantum twisters’ may form in liquid light
New mechanism found for generating giant vortices in quantum fluids of light. Anyone who has drained a bathtub or stirred cream into coffee has seen a vortex, a ubiquitous formation that appears when fluid circulates. But unlike water, fluids governed by the strange rules of quantum mechanics have a special restriction: as was first predicted in 1945 by future Nobel winner Lars Onsager, a vortex in a quantum fluid can only twist by whole-number units.

Mechanical Engineering - Environment - 11.02.2021
Common pipistrelle bats are attracted to wind turbines
Common pipistrelle bats are attracted to wind turbines
Fatal attraction: Research finds common pipistrelle bats are attracted to wind turbines One of the most abundant bats in Europe may be attracted to wind turbines, according to a new study from the University of Sussex and the University of Exeter. The activity of common pipistrelle bats was monitored at 23 British wind farms and similar "control" locations close by without turbines.

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