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Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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Incredible new material makes heat programmable3:15 A newly developed material can control and "program" heat, allowing it to direct thermal radiation, switch modes, and remember its settings without continuous power. The innovation could lead to smarter infrared sensors, better energy technologies, and memory devices that use light and heat instead of electrical charges. Bumblebees collect up to 7 times more toxic metals than honeybees3:15 Bumblebees are picking up dramatically more toxic heavy metals than honeybees, even when both species forage in the same places. Researchers warn that this hidden pollution could quietly reduce their ability to find food, reproduce, and keep colonies healthy. Schrödinger’s anthill: Quantum entanglement found in a crystal large enough to hold3:15 A centimeter-sized crystal has revealed clear signs of quantum entanglement, showing that large, everyday objects can display surprisingly deep quantum behavior. The discovery could help solve the mystery of strange metals while opening new possibilities for ultra-precise quantum sensors and other advanced technologies. The Neanderthal “love story” isn’t what the DNA actually shows3:15 Claims that Neanderthal men "preferred" Homo sapiens women may make for catchy headlines, but the underlying research does not actually show prehistoric romance. The genetic evidence only points to an uneven pattern of DNA inheritance, which could have been shaped by biology, migration, or social organization. Archaeological evidence suggests Neanderthal groups may have followed traditions where … Takeaway meals contain more salt than advertised, study finds3:15 Almost half of the takeaway meals tested contained more salt than advertised, with some dishes delivering nearly twice the recommended daily limit in a single serving. Surprisingly, classic fish and chips ranked among the lowest-salt options, while pasta, pizza, and curries were often the saltiest. AI just supercharged the race to find room temperature superconductors7.července Scientists have combined machine learning with quantum physics to discover two new superconductors and create a much faster way to search for many more. The technique could bring researchers significantly closer to the long-sought goal of a room-temperature superconductor. Scientists solve a 30-year rye pollen mystery that could transform cancer research6.července Scientists have finally solved a nearly 30-year-old mystery surrounding two unusual molecules found in rye pollen that once showed an intriguing ability to help animals fight tumors. By determining their exact 3D structures, researchers have unlocked the blueprint needed to investigate how these natural compounds interact with the immune system and which parts may be responsible for their cancer-… Millions may be getting the wrong cholesterol test6.července A new study suggests that apoB, a blood test that measures harmful cholesterol particles, is better than standard LDL cholesterol testing for deciding who needs more intensive treatment. Researchers found it could prevent more heart attacks and strokes while remaining cost-effective for the U.S. healthcare system. Streetlights are trapping thousands of pill bugs in giant “death spirals”6.července Researchers discovered that artificial streetlights can trap thousands of woodlice in mesmerizing circular "death spirals" never before seen in the wild. The surprising finding suggests that light pollution may be unintentionally altering the behavior of even the smallest ground-dwelling animals. Astronomers witness the birth of a magnetar for the first time6.července A strange "chirping" signal from a distant supernova has revealed the birth of a magnetar, confirming that these incredibly magnetic neutron stars can power the universe's brightest stellar explosions. The discovery also marks the first time Einstein's general relativity has been used to explain the mechanics of a supernova. Scientists may have finally found how Alzheimer's kills brain cells6.července Researchers have identified a previously overlooked mechanism of brain cell death that appears to play a major role in Alzheimer's disease and frontotemporal dementia. The finding could lead to new treatments aimed at slowing neuron loss by interrupting the process before cells are destroyed. Record-breaking ocean drilling reveals why Japan's 2011 tsunami was so deadly6.července Scientists have uncovered a hidden weakness beneath the Pacific Ocean that helps explain why Japan’s catastrophic 2011 earthquake and tsunami became so devastating. By drilling deeper into the seafloor than ever before, researchers discovered a thin, slippery layer of ancient clay that allowed the massive rupture to race all the way to the ocean floor, triggering enormous seafloor movement and a … Ancient bees turned tooth sockets into tiny nurseries 20,000 years ago6.července A stunning fossil discovery shows that ancient bees used the empty tooth sockets of mammal bones as tiny nests after owls scattered the bones across a cave floor 20,000 years ago. It's the first known evidence of bees nesting inside animal bones, revealing an astonishingly creative survival strategy. Scientists discover the deep sleep circuit that builds muscle, burns fat, and boosts the brain5.července Researchers have identified the brain circuitry that links deep sleep with the release of growth hormone, revealing how the two regulate each other. The newly discovered feedback loop helps explain why poor sleep can interfere with growth, muscle repair, fat metabolism, and brain function. Understanding this system could pave the way for new therapies for sleep disorders and diseases tied to meta… NASA's Hubble spots a stellar sparkler for the Fourth of July5.července NASA's Hubble Space Telescope has captured a spectacular red, white, and blue view of one of the Milky Way's oldest star clusters to celebrate the nation's 250th anniversary. Hidden within the ancient cluster are clues to how exploding stars helped transform the young universe into one capable of forming planets and, eventually, life. |