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Phys.org / Ancient sling bullet delivers a 2,100-year-old taunt: 'Learn your lesson!'
For millennia, sling bullets served as a hand-thrown projectile that could be used to fend off enemies. At Hippos, 70 sling bullets made of lead have been recovered over the course of fieldwork and excavation. However, while ...
Phys.org / Precision of the food-directional 'waggle dance' fluctuates with audience size and who's in attendance, study reveals
In recent years, scientists have carefully deciphered details of the honey bee "waggle dance," which is an advanced form of social communication in the animal kingdom. University of California San Diego biologists and their ...
Phys.org / Frustrated Lewis pair chemistry enables dual atom insertion to build bioactive molecules
Researchers from the National University of Singapore (NUS) have developed a boron-catalyzed method to transform oxetanes, which are small four-membered ring molecules, into larger, medicinally relevant 1,3-oxazinanes by ...
Phys.org / A safer, nonflammable battery electrolyte exists, but self-assembly flaw is holding it back
Many important technologies, from handheld phones to medical devices and transportation vehicles, rely on rechargeable batteries. Modern top-of-the-line rechargeable batteries transport lithium ions between electrodes to ...
Phys.org / Diamonds are not a geoengineer's best friend: Carbon impurities provide a reality check
The field of solar geoengineering revolves around the idea of cooling the globe via the injection of aerosols to reflect sunlight or to thin clouds. One such strategy, stratospheric aerosol injection (SAI), aims to mimic ...
Medical Xpress / World's only deuterium-labeled guinea pig helps scientists study metabolism
A Skoltech scientist has raised the world's only isotope-labeled guinea pig. For 156 days, the animal, named Khryun, was given only heavy water to drink. Such water is non-radioactive and has long been used in biomedical ...
Phys.org / An end to the battle between touchscreens and long fingernails is on the horizon
Anybody who has tried to use a smartphone or tablet with long nails knows that there's a learning curve. Rather than effortlessly tapping with a fingertip, you must awkwardly lay the pads of your fingers onto the screen. ...
Phys.org / Green clay courts serve up environmental solutions by absorbing carbon dioxide
Green clay tennis courts are able to absorb massive amounts of carbon dioxide via enhanced rock weathering, according to a new study in Applied Geochemistry. Enhanced rock weathering—the process of using silicate rocks ...
Medical Xpress / Scientists uncover key 'lipid transporter' that keeps skin healthy
Scientists have identified the transporter protein that allows essential fats in the bloodstream to enter the skin, reshaping understanding of how the skin maintains its protective barrier.
Medical Xpress / Why long-term lung risks persist after tuberculosis treatment
Even after completing treatment for tuberculosis (TB), some patients may remain vulnerable to further lung infections. Scientists at A*STAR Infectious Diseases Labs (A*STAR IDL) have recently uncovered how structures formed ...
Phys.org / Nanoplastics become more harmful after being outdoors, study finds
When cutlery, insulation, packaging and other items made of polystyrene plastic break down, they can form nanoplastics up to 100 times thinner than the average human hair—small enough to be inhaled into the lungs. For the ...
Phys.org / Pike eat more as water warms, threatening native species
Rising temperatures in a Southcentral Alaska river have led to a hungrier population of invasive northern pike, a trend that could imperil native salmon and other fish species. A University of Alaska Fairbanks-led research ...
