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Science X / Could less caffeine be the smarter performance enhancer? Scientists find a surprising sweet spot
Think of an athlete eyeing the finish line—could a single shot of caffeine be the difference between a podium finish and a personal best? For decades, runners and cyclists have treated the stimulant as a near-magical performance ...
Phys.org / Oldest example of preserved tube feet reveals clues about the lives of 452-million-year-old sea lilies
Echinoderms, such as starfish, sea urchins and sea lilies, use small, flexible, tubular projections called "tube feet" for locomotion, feeding, respiration and sensory perception. Crinoids, a subgroup of echinoderms, are ...
Phys.org / Ultra-fast light-shaping technology could be 'game-changer' for future imaging
Scientists have developed a new type of "virtual" metasurface—capable of controlling light in ways traditional lenses and optics can't—which they say is superior to the current approach, which relies on ultrathin engineered ...
Phys.org / Ancient stellar flyby may still be steering long-period comets today
The Gaia mission has allowed researchers to understand the motions of stars like never before, even revealing possible interactions between our solar system and nearby stars. Planetary Science Institute Senior Scientist Nathan ...
Phys.org / White barn owls may use moonlight to startle prey
White barn owls are effective killing machines. They fly silently through the night air and swoop down on unsuspecting prey with their sharp talons. But they have something you would think goes against being a stealth predator: ...
Phys.org / Asteroid zooming past Earth on Saturday visible to stargazers
A large asteroid that will zoom harmlessly past Earth on Saturday will be visible to stargazers using a small telescope or large binoculars, the European Space Agency announced Wednesday.
Phys.org / Commute stress can fuel workplace conflict, but research suggests a simple fix
Pothole season, summer construction season or maybe bad weather. No matter the time of year, it's no surprise commuters who drive to work may start their day already feeling a bit on edge.
Medical Xpress / What helps women eat well? Control over money, time and decisions matters
Worldwide, women carry the greatest burden of malnutrition. More than two-thirds of women of childbearing age don't get enough of at least one micronutrient. These are the vitamins and minerals, such as iron, that the body ...
Medical Xpress / VR combined with nerve stimulation improves arm and hand function following a stroke
Researchers at the Medical University of Vienna and ETH Zurich have developed a rehabilitation platform for people suffering from the long-term effects of a stroke that combines virtual reality with targeted sensory nerve ...
Tech Xplore / Swiss nuclear plant shut down due to heat wave
The reactors at Europe's oldest nuclear plant were shut down Friday, its Swiss operator said, after the heat wave roasting Europe sent temperatures soaring in the river used for cooling.
Medical Xpress / The HPV vaccine works—but only if we keep trusting it
Human papillomavirus (HPV) vaccination is already saving lives in the UK—and the scale of that success is striking.
Science X / AI in the classroom: Are we building better thinkers or better shortcuts?
AI chatbots like ChatGPT have made their way into college life, sparking an important debate: Do these tools actually help students become better thinkers, or are they just a shortcut? Universities want to foster critical ...
