विज्ञान समाचार

Seemingly miraculous innovations have made it possible to slake the ever-growing thirsts of our industrial society. Need more energy? Frack it from deep-bedded rocks. Fresh water? Desalinate ocean flows. Precious metals? Leach them from low-grade ores that were previously unminable.

From the water that comes out of the faucet to the chemical reactions in jet engines that propel planes, turbulence affects our everyday lives. Researchers at Georgia Tech are studying the complex physics of turbulence in simplified settings that could help us better understand nature and engineering.

Hydrogen-burning internal combustion engines offer great promise in the fight against climate change because they are powerful without emitting any earth-warming carbon. They can power heavy-duty trucks and buses and are suited for off-road and agricultural equipment and backup power generators, providing cleaner alternatives to diesel engines.

Skoltech researchers and their colleagues from the University of Granada, Spain, have determined the most efficient ways to reinforce vaults and domes in architecture. The team compared how well various traditional and unconventional patterns of stiffening ribs enable a structure to withstand both evenly distributed and asymmetric loads.

A new fabrication technique for substantially enhancing the prospects of commercializing perovskite solar cells through improved stability, reliability, efficiency and affordability is underway at City University of Hong Kong (CityUHK).

In recent years, roboticists have developed a wide range of systems designed to tackle various real-world tasks, ranging from completing household chores to delivering packages or finding target objects in delineated environments.

मल्टीमटेरियल 3डी प्रिंटिंग निर्माताओं को कई रंगों और विविध बनावटों के साथ अनुकूलित डिवाइस बनाने में सक्षम बनाती है।लेकिन यह प्रक्रिया समय लेने वाली और बेकार हो सकती है क्योंकि मौजूदा 3डी प्रिंटर को कई नोजल के बीच स्विच करना पड़ता है, अक्सर एक सामग्री को त्यागने से पहले वे दूसरी सामग्री जमा करना शुरू कर देते हैं।

A compressor hums, an air conditioning system rattles, a railway carriage chassis clatters, sending reverberations through its passengers. Vibrations are not only annoying but can also be harmful. Over the long term, they can destroy materials and machines and shorten their service lives. What's more, the noise generated by vibrations is harmful to human health and well-being.

Made from renewable materials like biomass and agricultural waste, sustainable aviation fuel has enormous potential to decarbonize the aviation industry. But widespread adoption has yet to take off.

The process of testing new solar cell technologies has traditionally been slow and costly, requiring multiple steps. Led by a fifth-year Ph.D. student, a Johns Hopkins team has developed a machine learning method that promises to dramatically speed up this process, paving the way for more efficient and affordable renewable energy solutions.

Alaska geologist Mark Myers hopes that underground reserves of hydrogen could fuel a new state energy industry.

Space weather forecasters say a severe solar storm heading to Earth could stress power grids even more as the U.S. deals with major back-to-back hurricanes.

In general, tool failure contributes about 7% to the down time of machine centers. And more severely, tool failure will reduce the machining quality of parts, and even damage the machine. Therefore, Tool wear condition monitoring (TWCM) is an important part of intelligent manufacturing, and has been a research hotspot since 1968.

Form Energy, a company that is beginning to produce a longer-lasting alternative to lithium batteries, hit a milestone Wednesday with an announcement of $405 million in funding.

कोलंबिया में मिशन क्रिटिका-डेटा सेंटर, जेडएफबी टेक्नोलॉजी सर्विसेज के एक सहयोगी के साथ काम करते हुए मैड्रिड के डिस्टेंस यूनिवर्सिटी के इलेक्ट्रिकल इंजीनियरों की एक जोड़ी ने छोटे टर्बाइनों का उपयोग करके मानव निर्मित पवन स्रोतों से बिजली पैदा करने की एक पद्धति विकसित की है।

Neural networks have a remarkable ability to learn specific tasks, such as identifying handwritten digits. However, these models often experience "catastrophic forgetting" when taught additional tasks: They can successfully learn the new assignments, but "forget" how to complete the original. For many artificial neural networks, like those that guide self-driving cars, learning additional tasks thus requires being fully reprogrammed.

नए तकनीकी नवाचार बनाने के लिए प्रकृति से प्रेरित तंत्र का उपयोग करना वर्जीनिया टेक अनुसंधान टीम का हस्ताक्षर है।एसोसिएट प्रोफेसर माइकल बार्टलेट के नेतृत्व वाले समूह ने ऑक्टोपस-प्रेरित चिपकने वाला पदार्थ बनाया है, जो ऑक्टोपस चूसने वालों के आकार से प्रेरित है, जो चुनौतीपूर्ण पानी के नीचे की वस्तुओं को जल्दी से पकड़ सकता है और नियंत्रित रूप से छोड़ सकता है।

Artificial Intelligence has learned to master language, generate art, and even beat grandmasters at chess. But can it crack the code of abstract reasoning—those tricky visual puzzles that leave humans scratching their heads?

John J. Hopfield and Geoffrey E. Hinton received the Nobel Prize in physics on Oct. 8, 2024, for their research on machine learning algorithms and neural networks that help computers learn. Their work has been fundamental in developing neural network theories that underpin generative artificial intelligence.

A recently developed electronic tongue is capable of identifying differences in similar liquids, such as milk with varying water content; diverse products, including soda types and coffee blends; signs of spoilage in fruit juices; and instances of food safety concerns.