Category · Science

A review examining the scientific evidence behind the 20-20-20 rule for digital eye strain finds that the specific numbers (every 20 minutes, look at something 20 feet away for 20 seconds) are not directly supported by rigorous clinical research. While the rule is widely recommended, its exact parameters appear arbitrary and lack strong empirical justification.

Over 1,300 wildlife illustrations from the 19th century have been digitally restored and made freely available online, offering a glimpse into the era's natural history art and scientific documentation.

Indian scientists have created the most detailed 3D atlas of the human brainstem, mapping its complex neural structures with unprecedented resolution. The atlas, named Bhāvānā, uses advanced imaging techniques and is expected to aid research into neurological disorders such as Parkinson's and Alzheimer's disease.

A paper by Brett Reynolds proposes that human language learning is genetically programmed not through a specific language mechanism, but through a tendency to attend to rapid, rhythmical streams of actions and an effort to predict them, allowing generic learning mechanisms to handle language acquisition. This applies to spoken language, sign language, and music.

Vivani Medical is developing a GLP-1 implant designed to deliver weight-loss medication continuously for months, aiming to improve patient adherence by eliminating the need for frequent injections. The implant represents a new approach to maintaining long-term weight loss treatment.

This post explains why the component definition (sum of products of corresponding coordinates) and the geometric definition (product of magnitudes times the cosine of the angle) of the dot product in Euclidean space are equivalent.

The Notable Knot Index (2016) is a curated reference of various knots, offering descriptions and classifications for knots used in climbing, sailing, fishing, and general utility. It serves as an educational resource for learning and identifying different knot types.

The article explores recent advances in cancer vaccine development, including personalized mRNA vaccines and combination therapies, and examines whether these new approaches will succeed where previous attempts have failed. It details the scientific challenges involved and the cautious optimism surrounding ongoing clinical trials.

The United States is exporting rare earth materials to Asia due to weak domestic demand, highlighting a gap between the country's mining capacity and its ability to process and manufacture these critical minerals for its own industries.

A journalist joins a group of eco-activists who illegally smuggle endangered cacti from the US back to Mexico, where the plants originated. The group aims to restore native populations threatened by poaching and habitat loss, operating in a legal grey area to move the succulents across the border.

NASA has started funding hardware development for a new Mars helicopter mission concept called 'Skyfall,' which could serve as a backup communications relay and science platform for future Mars missions, building on the success of the Ingenuity helicopter.

A new study suggests Earth may survive the Sun's eventual death, contradicting previous theories that our planet would be engulfed as the Sun expands into a red giant. The research indicates that the Sun's mass loss could cause Earth's orbit to widen enough to escape destruction, though the planet would still become uninhabitable.

A new UNEP report highlights five reasons for hope in the climate fight, including surging renewable energy, growing commitments, and falling green tech costs. It says the window to limit global warming remains open if accelerated action is taken.

The article discusses the author's personal experience with the psychedelic effects of LSD (acid), detailing the sensory and perceptual changes encountered during the trip.

New research suggests creatine, commonly known as a muscle-building supplement, may also boost the immune system's ability to fight cancer. Studies in mice showed creatine helped T-cells become more effective at attacking tumors. The findings could open new avenues for enhancing cancer immunotherapies.

A new type of superconducting thruster that generates thrust by interacting with Earth's magnetic field — requiring no propellant — has been successfully tested in orbit for the first time. The device, developed by researchers, could offer a fuel-free alternative for satellite propulsion in low-Earth orbit.

The world's largest iceberg, known as A23a, has melted away after drifting thousands of miles. Over its 30-year lifetime, the iceberg provided a unique platform for scientific study of ocean currents, climate, and marine ecosystems. Its quiet disintegration marks the end of an extraordinary natural phenomenon.

The article argues that the widespread use of statins and the demonization of cholesterol are driven by pharmaceutical profit rather than science. It claims high cholesterol is not a direct cause of heart disease and that statins carry dangerous side effects, suggesting the cholesterol-lowering industry is a scam.

The surge in rocket launches is releasing pollutants like black carbon directly into the upper atmosphere, causing a disproportionate warming effect that could accelerate climate change. Scientists warn that without regulation, the environmental toll of the expanding space industry may have severe long-term consequences.

Scientists have proposed using gene modification to revive the American chestnut tree, which was nearly driven to extinction by a fungal blight in the early 20th century. The genetic engineering approach aims to make the trees resistant to the blight, potentially restoring a once-dominant species in eastern U.S. forests.

The article explores the historical and scientific mystery surrounding giant clams in the Red Sea and Indian Ocean, tracing their significance in ancient and medieval cultures. It examines how these massive mollusks were traded, used as currency, and inspired myths, while also addressing modern taxonomic confusion and conservation concerns about their populations.

A review of Lixing Sun's book "On the Origin of Sex" explores the evolutionary puzzle of why sexual reproduction exists, given its inefficiencies compared to asexual reproduction. Sun argues that sex serves as a mechanism to filter out harmful mutations and adapt to changing environments. The review examines the scientific debate and evidence surrounding this fundamental biological question.

The article argues that visual recognition of objects or patterns—such as identifying a figure in an image—does not equate to true understanding of their meaning, context, or underlying reality. It warns against mistaking familiarity for genuine comprehension, especially in an age of information overload and surface-level engagement.

The article discusses the role of cybernetics in transition design, framing implication as obligation—how recognizing interdependencies in complex systems imposes ethical responsibilities on designers to actively shape sustainable futures rather than merely analyze existing problems.

Spending time in microgravity causes significant changes to the human brain, including fluid shifts that can alter its shape and position within the skull. These changes may persist for months after returning to Earth, affecting vision, motor skills, and cognitive function. Scientists are studying these effects to better prepare astronauts for long-duration space missions.

This 2016 paper presents a method combining SAT solvers with computer algebra systems to automatically verify combinatorial conjectures, demonstrated on problems like the Boolean Pythagorean triples conjecture.

A new study shows that large language models (LLMs) can accurately predict results from social science experiments, suggesting they could serve as powerful tools for hypothesis generation and research design in the social sciences.

An interactive visualization examines the increasing density of satellites in Earth's orbit, illustrating how the night sky is becoming more crowded with human-made objects.

Solomon's paradox describes the phenomenon where people reason more wisely about others' social problems than about their own. Named after King Solomon's biblical wisdom in judging others' disputes despite poor personal decisions, the paradox highlights a bias where emotional self-distance improves reasoning.

A study suggests solar geoengineering could reduce the severity of extreme El Niño events caused by climate change, but the approach carries significant risks and is not a substitute for cutting emissions.