Shuttlecocks, also known as birdies or birds, are traditionally made from duck feathers, but nylon shuttlecocks have become more widely used because of their superior durability. Their flight behavior, however, is far different from that of traditional feather birdies. Scientists have now explored the aerodynamic performance of nylon shuttlecocks at various flight speeds. Through computational analyses based on two-way fluid-structure interactions, the team coupled equations governing air flow with equation Read more ›
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Chronic exposure to arsenic, often through contaminated groundwater, has been associated with Type 2 diabetes in humans, and there are new clues that males may be more susceptible to the disease when exposed. Read more ›
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Researchers have made a groundbreaking discovery regarding the origins of non-meteoric water in natural spa waters located in central Japan. Based on numerical modeling, their results suggest that this water has been confined within the lithosphere for an extensive period of 1.5-5 million years. They identified three primary sources for this ancient water: the Philippine Sea Plate, the Pacific Plate, and ancient seafloor sediments, particularly in the Niigata and southwest... Read more ›
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Researchers have developed a nondestructive method utilizing light to estimate the total amount of polyphenols and flavonoids in spice extracts, along with their antioxidant and reducing capacities. By comprehensively capturing the autofluorescence emitted by components, such as polyphenols and flavonoids, they have demonstrated the precise evaluation of chemical constituents using the application of machine learning methods. Read more ›
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Love is blind, the saying goes, and thanks to a new study we are now a step closer to understanding why. Researchers have measured how a part of the brain is responsible for putting our loved one on a pedestal in that first flush of romance. Read more ›
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Butterfly populations in Catalonia in northern Spain are better than their UK counterparts at regulating their body temperature by basking in the sunshine, but rising global temperatures due to climate change may put Spanish butterflies at greater risk of extinction. Read more ›
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As climate change fuels sea level rise, younger people will migrate inland, leaving aging coastal populations -- and a host of consequences -- in their wake, a study finds. While destination cities will work to sustainably accommodate swelling populations, aging coastal communities will confront stark new challenges, including an outflow of vital human infrastructure such as health care workers. Read more ›
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Measuring airborne grass allergen levels instead of pollen counts will be more beneficial for hay fever sufferers as new research shows grass allergen levels are more consistently associated with hay fever symptoms than grass pollen counts. Read more ›
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Women with autoimmune disease are more likely to suffer from depression during pregnancy and after childbirth; conversely, women with a history of perinatal depression are at higher risk of developing autoimmune disease, a new study reports. Read more ›
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In a real-world setting, analysis showed that risk of infection and severe illness was significantly lower for those who were vaccinated against COVID-19, and cardiac conditions did not increase. Read more ›
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By investigating a molecule in the brain tied to cellular communication, scientists uncover important information about the proteins that do -- and do not -- influence alcohol drinking behavior. Read more ›
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In the culmination of a decade's worth of effort, scientists analyzed an unprecedented sample of more than 1,500 supernovae classified using machine learning. They placed the strongest constraints on the expansion of the universe ever obtained with the DES supernova survey. While consistent with the current standard cosmological model, the results do not rule out a more complex theory that the density of dark energy in the universe could have... Read more ›
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A new study identifies, in mice, a critical communication pathway connecting the brain and the body's fat tissue in a feedback loop that appears central to energy production throughout the body. The research suggests that the gradual deterioration of this feedback loop contributes to the increasing health problems that are typical of natural aging. Read more ›
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Researchers have developed a new soft robot design that engages in three simultaneous behaviors: rolling forward, spinning like a record, and following a path that orbits around a central point. The device, which operates without human or computer control, holds promise for developing soft robotic devices that can be used to navigate and map unknown environments. Read more ›
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Researchers have developed a new lithium metal battery that can be charged and discharged at least 6,000 times -- more than any other pouch battery cell -- and can be recharged in a matter of minutes. The research not only describes a new way to make solid state batteries with a lithium metal anode but also offers new understanding into the materials used for these potentially revolutionary batteries. Read more ›
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New research in the southwestern part of Hawai'i Island shows that identifying and protecting marine ecosystems both down-current and up-current of coral reefs, specifically areas where coral larvae are more likely to survive and thrive, is crucial to future coral conservation and restoration efforts -- especially as reefs face increasing pressure from the devastating effects of climate change. Read more ›
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Researchers tested the surfaces in smoking households where children reside and found troubling results. Read more ›
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In recent years, there has been rising concern that tiny particles known as microplastics are showing up basically everywhere on Earth, from polar ice to soil, drinking water and food. Formed when plastics break down into progressively smaller bits, these particles are being consumed by humans and other creatures, with unknown potential health and ecosystem effects. One big focus of research: bottled water, which has been shown to contain tens... Read more ›
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Africa has a huge diversity of large mammals, but their evolutionary relationships and movement across the continent over time often remain a mystery. A new scientific study sheds light on longstanding questions about the interplay between evolution and geography in one of these mammals, namely the iconic African bushpig, and helps settle a major question regarding prehistoric human activities shaping biodiversity patterns in Africa. Read more ›
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A global study shows that the effects of extreme drought -- which is expected to increase in frequency with climate change -- has been greatly underestimated for grasslands and shrublands. The findings quantify the impact of extreme short-term drought on grassland and shrubland ecosystems across six continents with a level of detail that was not previously possible. It is the first time an experiment this extensive has been undertaken to... Read more ›
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24.07.2026 20:35
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