ScienceDaily |
Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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This popular fermented food may help flush microplastics from the body12:50 Scientists in South Korea have discovered that a probiotic bacterium found in kimchi may help the body flush out tiny plastic particles before they can build up in organs. In lab tests, the kimchi-derived microbe clung tightly to nanoplastics even under conditions designed to mimic the human intestine, where other bacteria quickly lost their grip. Scientists opened a sealed envelope after 10 years and gravity still didn’t make sense12:50 For more than 200 years, scientists have struggled to pin down the exact strength of gravity — and one physicist spent a decade chasing the answer while keeping his own results hidden from himself. Stephan Schlamminger and his team at NIST painstakingly recreated a landmark French experiment designed to measure “big G,” the universal gravitational constant that governs everything from falling app… Schrödinger’s clock: Time could tick faster and slower at the same time12:50 Time might be even stranger than Einstein imagined. Physicists are now exploring the possibility that a single clock could exist in a quantum superposition, ticking both faster and slower at the same time — almost like Schrödinger’s cat being both alive and dead simultaneously. Using incredibly precise atomic clocks and cutting-edge quantum technologies, researchers believe they may soon be able … Plant believed extinct for 60 years suddenly reappears11:07 A random photo snapped in the Australian outback has led to the rediscovery of a plant thought extinct for nearly 60 years — proving that ordinary people with smartphones are quietly transforming science. After bird bander Aaron Bean uploaded pictures of a strange shrub to iNaturalist, botanist Anthony Bean immediately recognized it as Ptilotus senarius, a rare species missing since 1967. Scientists think they’ve cracked the mystery of human right-handedness11:07 A new study suggests humans became overwhelmingly right-handed because of two major evolutionary shifts: walking on two legs and developing much larger brains. Researchers found that as human ancestors evolved, their right-hand preference steadily intensified — transforming a mild tendency into one of humanity’s most distinctive traits. The “impossible” LED that could change everything7:50 Scientists at the University of Cambridge have achieved what was once considered impossible by electrically powering insulating nanoparticles to create a completely new kind of LED. Using tiny organic “molecular antennas,” the team found a way to funnel energy into materials that normally cannot conduct electricity, producing ultra pure near infrared light with remarkable efficiency. Scientists just unlocked a cheaper way to make clean hydrogen fuel7:49 Researchers have developed a durable new catalyst that produces clean hydrogen without relying on expensive platinum metals. The breakthrough could make renewable hydrogen fuel cheaper, more efficient, and easier to scale for real-world energy use. AI reveals the invisible magnetic chaos wasting energy inside electric motors7:49 Electric vehicles are pushing scientists to tackle one of the biggest hidden energy drains inside electric motors: magnetic energy loss. Now, researchers in Japan have developed a powerful AI-driven physics model that can peer into the chaotic “maze-like” magnetic patterns inside motor materials and reveal how heat and microscopic magnetic structures trigger wasted energy. Quantum ghost imaging works using only sunlight in stunning new experiment5:06 Scientists have achieved something that once sounded almost impossible: using ordinary sunlight to create quantum-linked photon pairs, a phenomenon normally dependent on precise laboratory lasers. By building a sun-tracking system that funnels sunlight through optical fiber into a special crystal, researchers generated strongly correlated photons capable of performing “ghost imaging,” where image… Scientists uncover surprising health benefits of watermelon5:06 Studies suggest watermelon could be a hidden powerhouse for better health. Researchers found that people who eat watermelon tend to have higher-quality diets packed with more vitamins, fiber, and antioxidants — while consuming less added sugar and saturated fat. Another study showed watermelon juice may help protect blood vessel function and support heart health. Scientists reveal how seven days of fasting transforms the human body5:06 Scientists have discovered that the human body undergoes a dramatic internal transformation during extended fasting, with major changes appearing only after about three days without food. In a seven-day water-only fasting study, researchers tracked thousands of proteins in the blood and found widespread shifts affecting organs throughout the body — including the brain. While the body quickly swit… Scientists reverse Alzheimer’s in mice with breakthrough nanotechnology5:06 A new nanotechnology treatment reversed Alzheimer’s symptoms in mice by restoring the brain’s natural cleanup system. The specially engineered nanoparticles helped clear toxic amyloid proteins from the brain and repair the blood-brain barrier, which normally protects and regulates the brain’s environment. In one striking experiment, elderly mice treated with the therapy later behaved like healthy… Ancient lost ocean may have built Central Asia’s dinosaur-era mountains5:06 Scientists have uncovered evidence that the vanished Tethys Ocean may have sculpted Central Asia’s mountainous landscape during the dinosaur era. Using decades of geological data, researchers found that distant tectonic activity linked to the ancient ocean appears to match periods of rapid mountain formation. Surprisingly, climate and mantle processes played only a minor role. The discovery could… Scientists reveal the surprising truth about coffee and blood pressure5:06 Coffee may give your blood pressure a temporary jolt, but that doesn’t mean it’s secretly wrecking your heart. Researchers say caffeine can briefly raise blood pressure by stimulating your heart and tightening blood vessels, especially in people who don’t drink coffee regularly. But large studies involving hundreds of thousands of people found no strong evidence that moderate coffee drinking incr… Scientists reversed memory loss by recharging the brain’s tiny engines17.května Researchers have shown for the first time that malfunctioning mitochondria — the cell’s energy generators — may directly cause cognitive decline in neurodegenerative diseases. By creating a new tool that temporarily boosts mitochondrial activity in the brain, scientists restored memory performance in mouse models of dementia. The discovery hints that energy failure inside neurons could happen bef… |