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Sound-levitated particles reveal how static charge builds up
المصدر: Phys.org - latest science and technology news stories · نُشر
When two objects touch and then separate, they can swap tiny amounts of electric charge, even if they are made from exactly the same material. This 'triboelectric effect' is the source of everyday static electricity, but it is still poorly understood in large samples of powder, w
When two objects touch and then separate, they can swap tiny amounts of electric charge, even if they are made from exactly the same material. This 'triboelectric effect' is the source of everyday static electricity, but it is still poorly understood in large samples of powder, where vast numbers of particles are constantly colliding with each other.
أخبار ذات صلة
New feed supplement addresses honey bee declines after blueberry pollination
Washington produces more blueberries than any other U.S. state, but farmers sometimes struggle to obtain honey bees to pollinate the plants and produce fruit. That's in part because beekeepers are reluctant to provide bees to blueberry farms, given that there have been increased—
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Livelihood, education goals affect migration under climate change
Climate-driven hazards can push many to leave their homes in search of a livelihood elsewhere, but aspirations for the future may change where they decide to migrate, according to a new study led by researchers at Penn State. At the same time, income losses due to climate shocks,
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Study finds heat waves speed snowmelt substantially, but rivers respond unevenly
A new study by researchers at Montana State University has found that heat waves substantially accelerate the melting rate of mountain snowpack; however, the resulting water doesn't necessarily produce an immediate increase in streamflow.
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Fishmeal alternative aims to protect marine wildlife from overfishing
Technology that transforms organic waste into animal feed could help ease an overreliance on fishmeal in aquaculture. University of Queensland researchers have developed a production process that converts organic waste into biogas to grow a high-protein alternative to fish feed.
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Dead tree branches rise and fall with changing humidity, laser scans reveal
Dead tree branches are by no means static but move throughout the day. Geoinformatics researchers at Heidelberg University tracked these movements in a study conducted in cooperation with the Finnish Geospatial Research Institute (FGI).
Phys.org - latest science and technology news stories ·