科学与环境
Crystals thinner than human hair can move or partly dissolve when exposed to chloroform
来源: Phys.org - latest science and technology news stories · 发布于
Many of the common materials we encounter in our daily lives are crystalline, including ice, salt and sugar. The crystal structures of some solids are formed from molecules arranged in simple geometric patterns, and these patterns can be changed to give the solids special propert
Many of the common materials we encounter in our daily lives are crystalline, including ice, salt and sugar. The crystal structures of some solids are formed from molecules arranged in simple geometric patterns, and these patterns can be changed to give the solids special properties required for high-tech applications. However, changing these connections requires extreme measures, such as high heat, leaving researchers with the challenge of finding an easier transformation method.
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Hidden 'funnels' let complex systems slip between stable states
Many systems in nature can settle into several different stable states, with the final state depending on their starting conditions. However, the boundaries separating these states are often far more complicated than they first appear.
Phys.org - latest science and technology news stories ·
How the biological clock regulates phases of wakefulness
The circadian clock is an internal biological system that regulates sleep-wake cycles, as well as many physiological functions such as body temperature and hormone production. In many animals, this clock relies on a network of neurons that generates rhythms of approximately 24 ho
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Learning math goes (slightly) better with AI, but human teacher plays a key role
Elementary school students who use an AI-supported learning tool learn arithmetic more quickly than children who do not use such a tool. This is the finding of a multiyear study by Radboud University involving nearly 8,000 children. However, the researchers warn that it's no mira
Phys.org - latest science and technology news stories ·
Trehalose analog provides a new platform for designing water-soluble glycopolymers
Sugars are attractive building blocks for functional materials because of their high water affinity and diverse biological properties. Incorporating sugars into synthetic polymers can therefore provide materials that combine the processability of polymers with characteristics der
Phys.org - latest science and technology news stories ·
Mulberry may reshape gut bacteria and influence metabolism
Mulberry compounds may reshape the gut microbiome in ways that support intestinal health and metabolism, with some combinations showing especially strong effects in animal studies. However, the results vary depending on the plant part and processing method, and the benefits have
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