Tag: nauka

21 stycznia, 2022 Wyłączone

Sidewinding young stellar jets spied by Gemini South

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Sinuous stellar jets meander lazily across a field of stars in new images. The gently curving stellar jets are the outflow from young stars, and astronomers suspect their sidewinding appearances are caused by the gravitational attraction of companion stars. These crystal-clear observations were made using the Gemini South telescope’s adaptive optics system, which helps astronomers counteract the blurring effects of atmospheric turbulence.
21 stycznia, 2022 Wyłączone

Rusting iron can be its own worst enemy

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Atom-level simulations reveal the reason iron rusts in supposedly 'inert’ supercritical carbon dioxide fluid. Trace amounts of water can cause a reaction at the interface between iron and the fluid, prompting the formation of corrosive chemicals.
21 stycznia, 2022 Wyłączone

Mange outbreak decimated a wild vicuna population in Argentina

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Mange has decimated the population of wild vicunas and guanacos in an Argentinian national park that was created to conserve them, according to a new study. The findings suggest domestic llamas introduced to the site may have been the source of the outbreak. Cascading consequences for local predator and scavenger species are expected.
21 stycznia, 2022 Wyłączone

Reinterpreting our brain’s body maps

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Our brain maps out our body to facilitate accurate motor control. For a century, the body map has been thought to have applied to all types of motor actions. Now, a research group has revealed that the body relies on multiple maps based on the choice of motor system.
21 stycznia, 2022 Wyłączone

Balanced diet can mitigate negative impact of pests for bumblebees

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Bumblebees are important pollinators because they pollinate many different plant species and are extremely resilient. They can still manage to fly at temperatures that are too cold for other pollinators. Like many other insects, they are in sharp decline. This makes it even more important to find out what bumblebees need to reproduce successfully. A team has shown that a diverse landscape and a diverse pollen diet, which the bumblebees collect as a protein source to nourish their offspring, play a significant role in this. A more diverse diet could even mitigate negative effects of infestation with parasitic wax moth larvae.
21 stycznia, 2022 Wyłączone

New neutron-based method helps keep underwater pipelines open

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Industry and private consumers alike depend on oil and gas pipelines that stretch thousands of kilometers underwater. It is not uncommon for these pipelines to become clogged with deposits. Until now, there have been few means of identifying the formation of plugs in-situ and non-destructively. Measurements now show that neutrons may provide the solution of choice.