ScienceDaily |
Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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A simple turn reveals a 1,500-year-old secret on Roman glass15:44 A museum visit sparked a revelation when a Roman glass cup was turned around and its overlooked markings came into focus. These symbols, once dismissed as decoration, appear to be workshop identifiers used by teams of skilled artisans. The findings challenge centuries of assumptions about how Roman glass was made. They also restore identity and agency to the anonymous makers behind these stunning… Living cells may generate electricity from motion15:44 Cells may generate their own electrical signals through microscopic membrane motions. Researchers show that active molecular processes can create voltage spikes similar to those used by neurons. These signals could help drive ion transport and explain key biological functions. The work may also guide the design of intelligent, bio-inspired materials. Colon cancer is surging in younger adults and doctors are alarmed15:44 Cases of colorectal cancer in younger adults are climbing worldwide, driven by lifestyle changes and inherited genetic risks. Diet, obesity, and lack of early screening are playing a major role in this shift. New genetic tests offer hope for earlier detection, but access and awareness lag behind. Health experts say urgent action is needed to reverse the trend. A new way to prevent gum disease without wiping out good bacteria15:44 Scientists are uncovering a surprising way to influence bacteria—not by killing them, but by changing how they communicate. Researchers studying oral bacteria found that disrupting chemical signals used in bacterial “conversations” can shift dental plaque toward healthier, less harmful communities. The discovery could open the door to new treatments that prevent disease by maintaining a balanced … Physicists found a way to see heat in empty space15:44 Physicists have found a clever way to detect the elusive Unruh effect without extreme accelerations. By using atoms that emit light cooperatively between mirrors, acceleration subtly shifts when a powerful light burst appears. That early flash acts like a timestamped signature of the effect. The method could make once-theoretical physics experimentally reachable. AI learns to decode the diseases written in your DNA13:22 A newly developed AI can predict which diseases specific genetic mutations are likely to cause, not just whether they are harmful. The breakthrough could speed up diagnoses and open new paths for personalized treatment. Scientists find the missing links between genes and disease13:22 A new genetic mapping strategy reveals how entire networks of genes work together to cause disease, filling in the missing links left by traditional genetic studies. The technique could transform how scientists identify drug targets for complex conditions. This rare earthquake did everything scientists hoped to see13:22 A rare, ultra-long earthquake in Myanmar revealed that mature faults can deliver their full force directly to the surface. The discovery could mean stronger shaking near faults like California’s San Andreas than current models predict. A hidden climate shift may have sparked epic Pacific voyages 1,000 years ago6:04 Around 1,000 years ago, a major climate shift reshaped rainfall across the South Pacific, making western islands like Samoa and Tonga drier while eastern islands such as Tahiti became increasingly wet. New evidence from plant waxes preserved in island sediments shows this change coincided with the final major wave of Polynesian expansion eastward. As freshwater became scarcer in the west and more… Giant sea monsters lived in rivers at the end of the dinosaur age5:30 Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater rivers alongside dinosaurs and crocodiles. A massive tooth found in North Dakota, analyzed using chemical isotope techniques, reveals that some mosasaurs adapted to river systems as seas gradually freshened near the end of the age of dinosaurs. These enormous reptiles, pos… Hidden dimensions could explain where mass comes from15.prosince A new theory proposes that the universe’s fundamental forces and particle properties may arise from the geometry of hidden extra dimensions. These dimensions could twist and evolve over time, forming stable structures that generate mass and symmetry breaking on their own. The approach may even explain cosmic expansion and predict a new particle. It hints at a universe built entirely from geometry. Why consciousness exists at all15.prosince Consciousness evolved in stages, starting with basic survival responses like pain and alarm, then expanding into focused awareness and self-reflection. These layers help organisms avoid danger, learn from the environment, and coordinate socially. Surprisingly, birds show many of these same traits, from subjective perception to basic self-awareness. This suggests consciousness is far older and mor… AI found a way to stop a virus before it enters cells15.prosince Researchers discovered a hidden molecular “switch” that herpes viruses rely on to invade cells. By combining AI, simulations, and lab experiments, they identified and altered a single amino acid that shut down viral entry. What once might have taken years was achieved far faster using computational tools. The findings open new possibilities for designing future antiviral treatments. New study shows some plant-based diets may raise heart disease risk15.prosince Researchers tracking over 63,000 adults found that high-quality, minimally processed plant foods significantly reduce cardiovascular risk. But when those plant foods are ultra-processed, the advantage disappears—and can even backfire. Some ultra-processed plant diets increased risk by 40%. The study urges a shift toward whole, naturally nutrient-rich plant foods. New orbital clue reveals how hot Jupiters really formed15.prosince Hot Jupiters were once cosmic oddities, but unraveling how they moved so close to their stars has remained a stubborn mystery. Scientists have long debated whether these giants were violently flung inward or peacefully drifted through their birth disks. A new approach from researchers in Tokyo cracks open this puzzle by using the timescale of orbital circularization as a diagnostic. |