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News
Why Metal Feels Colder Than Wood
5+ hour, 9+ min ago (27+ words) Both tables read 22 °C, yet only the metal feels cold. What decides it is thermal effusivity, not conductivity — and I calculate how cold your skin gets....
Discarded Lithium-Ion Batteries Brought Back to Life With Thermochemical
1+ day, 14+ hour ago (641+ words) Every electric vehicle that rolls off an assembly line today carries within it a promise of cleaner transportation and, eventually, a difficult waste problem. Lithium-ion batteries degrade with use, and when they can no longer hold enough charge to propel…...
The Slow Drain: Tiny Electronic Currents Threaten Solid-State Battery
1+ day, 20+ hour ago (583+ words) Solid-state batteries have been heralded as the next great leap in energy storage, promising higher energy densities, improved safety and longer lifetimes than the lithium-ion cells that power everything from smartphones to electric vehicles....
Grass Extract Blocks Chloride Corrosion in Duplex Stainless Steel
1+ day, 22+ hour ago (72+ words) A humble grass that grows wild in the alluvial soils of northern India may soon help protect the steel pipelines that carry the world’s oil and gas. In a new open-access study published in the Journal of Materials Science: Metallurgy,…...
Freshwater shrimp kept for twenty hours at a caffeine concentration detected in highly polluted rivers spent less time in the dark than shrimp kept at ordinary background levels, and that shift was about the same size as the one caused by a parasite that manipulates them into being eaten by water birds
2+ day, 8+ hour ago (524+ words) The high tanks held 10,000 nanograms of caffeine per litre and the low tanks held 100, two levels chosen because both occur in real rivers. There was no caffeine-free group at all, so what the experiment measures is the distance between those…...
A “jack-of-all-trades” enzyme found in American pokeweed: Chinese scientists discover a promiscuous sugar-stitching tool for natural products
3+ day, 19+ hour ago (187+ words) Credit: Zhang Yi, Wang Jinxin, Zhu Yiqing, et al Then came the functional audition: testing each recombinant protein against three triterpene substrates (phytolaccagenin, jaligonic acid, and bayogenin) with UDP-glucose. Only one enzyme passed: PamUGT, converting all three substrates at 30%–40%. Mass…...
Blue light boosts key medicinal compounds in Astragalus, study finds: Multi-omics and genetic tools uncover light-driven isoflavonoid biosynthesis
3+ day, 19+ hour ago (224+ words) EurekAlert! A working model illustrating how red and blue light promote isoflavonoid biosynthesis in the roots of A. mongholicus. Astragalus mongholicus, a cornerstone of traditional Chinese medicine, produces isoflavonoids—bioactive compounds with anti-inflammatory, immune-boosting, and antiviral properties. However, the molecular machinery…...
Taking the pulse of ultrafast spectroscopy - Nature Reviews Methods Primers
3+ day, 21+ hour ago (93+ words) Advances in ultrafast laser technology have revolutionized the study of time-resolved phenomena across physics, chemistry, biology and materials science. Here, Giulio Cerullo, a pioneer in the development of optical parametric amplifiers and their application to ultrafast spectroscopy, shares his perspective…...
Nanoscale HZO-SiO₂ Engineering Stabilizes Resonators Across Wide Temperature Swings
4+ day, 9+ hour ago (498+ words) By engineering the elastic response of layered ferroelectric oxides at the nanoscale, researchers explored whether a CMOS-compatible resonator could maintain stable performance as temperatures shift across an exceptionally wide range. For decades, quartz has been the material of choice for…...
First-ever Aussie study of “forever chemicals” in rain finds safe concentrations for drinking water
4+ day, 21+ hour ago (712+ words) image: Professor Oliver Jones (right) and PhD student Nav Singh conduct research in the lab at RMIT University in Melbourne. view more Credit: Ant Bragaglia, RMIT University The first Australian study of PFAS – so called “forever chemicals” – in rainwater has…...