विज्ञान समाचार

More than 2 billion people around the world do not have access to safe, uncontaminated drinking water. Around 418 million of them live in African countries.

When you ask a rideshare app to find you a car, the company's computers get to work. They know you want to reach your destination quickly. They know you're not the only user who needs a ride. And they know drivers want to minimize idle time by picking up someone nearby. The computer's job, says Cold Spring Harbor Laboratory Associate Professor Saket Navlakha, is to pair drivers with riders in a way that maximizes everyone's happiness.

Tunable diode laser absorption spectroscopy (TDLAS) technology holds significant potential for greenhouse gas detection, due to its advantages of non-contact, real-time measurements. However, the technical bottleneck of cross-interference in gas absorption spectra has significantly constrained the development and application of this technique in simultaneous measurement of multi-component gases.

Research conducted by UCL researchers reveals and explains the links between vapor depression shape and spatter dynamics during LPBF under various industry-relevant processing conditions.

Artificial intelligence is a key technology for self-driving vehicles. It is used for decision-making, sensing, predictive modeling and other tasks. But how vulnerable are these AI systems to an attack?

A new study has found that intelligence, in the form of general cognitive abilities such as perception, thinking and remembering, is more important than hitherto thought at predicting a person's ability to complete common tasks with a PC. The study was published in the International Journal of Human-Computer Studies in August 2024.

Researchers at the University of Toronto have found that using virtual and augmented reality (VR and AR) can temporarily change the way people perceive and interact with the real world—with potential implications for the growing number of industries that use these technologies for training purposes.

In the past two decades, technological leaps in urban infrastructure have driven an explosion of convenience and industry in services such as ride-hailing and delivery of goods.

A team of Alberta Machine Intelligence Institute (Amii) researchers has revealed more about a mysterious problem in machine learning—a discovery that might be a major step towards building advanced AI that can function effectively in the real world.

Photovoltaics are set to meet over 40% of Switzerland's electricity needs by 2050. But solar power isn't always available when it's needed: there's too much of it in summer and too little in winter, when the sun shines less often and heat pumps are running at full tilt. According to the Swiss federal government's Energy Strategy, Switzerland wants to close the winter electricity gap with a combination of imports, wind and hydropower as well as alpine solar plants and gas-fired power plants.

Reasoning, the process through which human beings mentally process information to draw specific conclusions or solve problems, can be divided into two main categories. The first type of reasoning, known as deductive reasoning, entails starting from a general rule or premise and then using this rule to draw conclusions about specific cases.

Optical illusions, quantum mechanics and neural networks might seem to be quite unrelated topics at first glance. However, in new research published in APL Machine Learning, I have used a phenomenon called "quantum tunneling" to design a neural network that can "see" optical illusions in much the same way humans do.

A team of engineers at Huazhong University of Science and Technology in China has designed, built and independently tested an all-perovskite tandem solar cell with record efficiency. Their paper is published in the journal Nature Communications.

वैज्ञानिकों का कहना है कि उन्होंने एक ऐसी संरचना विकसित की है जो विभिन्न उद्योगों में मशीनों और उपकरणों के कंपन को रोकने के लिए अब तक इस्तेमाल की जाने वाली पारंपरिक प्रणालियों की तुलना में इंजीनियरिंग और मैकेनिकल गैजेट्स के कंपन को अधिक प्रभावी ढंग से अवशोषित और कम कर सकती है।

Solar cells based on perovskites, a versatile class of materials with promising optoelectronic properties, are gradually making their way toward commercialization. While these solar cells can have notable advantages over existing solar cell designs, including higher power conversion efficiencies and lower fabrication costs, their performance has been found to be significantly impaired in reverse bias conditions.

प्रकृति से प्रेरणा लेते हुए, प्रिंसटन इंजीनियरिंग के शोधकर्ताओं ने वास्तुशिल्प डिजाइनों को एडिटिव विनिर्माण प्रक्रियाओं और औद्योगिक रोबोटों के साथ जोड़कर कंक्रीट घटकों में दरार प्रतिरोध में सुधार किया है जो सामग्री जमाव को सटीक रूप से नियंत्रित कर सकते हैं।

Most urban transit systems have a brief window of time in the wee hours of the morning to perform maintenance work without disrupting passenger service.

South Africa is at a pivotal moment in its energy transition: trying to decarbonize its economy (move away from coal) and make sure that everyone has access to reliable and affordable energy. Storage of renewable energy is very important for this transition. Solar and wind power are not available all the time. To keep the national grid stable, renewable energy must be stored somewhere and supplied reliably.

राइस यूनिवर्सिटी के शोधकर्ताओं ने एक स्मार्ट सामग्री विकसित की है जो तापमान में बदलाव के साथ अपनी पारदर्शिता को समायोजित करती है, स्थायित्व, पारदर्शिता और प्रतिक्रिया के मामले में समान सामग्रियों से बेहतर प्रदर्शन करती है।जूल में प्रकाशित एक नए अध्ययन के अनुसार, नया पॉलिमर मिश्रण इनडोर स्पेस कूलिंग के लिए ऊर्जा दक्षता में काफी वृद्धि कर सकता है।

To fight stony coral tissue loss disease (SCTLD), which infects and kills corals already weakened by climate change, scientists are turning to antibiotics.