Scientists camouflage heart rate from invasive radar-based surveillance
Peer-Reviewed Publication
Updates every hour. Last Updated: 21-Jun-2026 12:16 ET (21-Jun-2026 16:16 GMT/UTC)
Rice researchers and collaborators have developed a system to camouflage heart rate from radar-based surveillance.
Why the world’s best clean-energy catalysts still fail — and how to fix them? Iridium oxide is one of the best catalysts for making hydrogen fuel, but it’s rare and slowly breaks down inside electrolyzers. In a new study, researchers at Duke University and the University of Pennsylvania captured iridium oxide degrading atom by atom, in real time — revealing that the degradation process is not at all what they expected. Understanding how these materials fail is a critical step toward designing longer-lasting catalysts — and a more sustainable green-energy economy.
A new UC San Diego study reveals that fossil fuel-based plastic pollution may be promoting toxic water conditions by removing animals that keep water at safe levels. Biologically based plastics had a much smaller impact, the study found.