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Wearable electronics are becoming an important part of modern technology. Smartwatches, fitness trackers, health-monitoring patches and smart clothing can continuously collect information from the human body. These devices can monitor signals such as heart rate, body movement, temperature and other important biological information. However, one major challenge remains: comfort . Many wearable electronic devices are worn directly on the skin for long periods. If they are not breathable, sweat and moisture can become trapped between the device and the skin. This can cause discomfort, skin irritation and reduced performance. Sweat can also interfere with electronic signals, making it more difficult for the device to accurately monitor the body. Scientists have now developed a new approach that could help solve these problems. Researchers led by Zhang and their team have introduced a new type of moisture-permeable wearable electronic system based on a technology called a three-dimensional...

Imagine wearing a shirt that can produce electricity from your own body. It could collect energy when you move, generate more power from your sweat, store that energy, and use it to run small electronic devices. Scientists are now working on this idea with a new technology called an e-textile microgrid . This system combines different energy-producing technologies directly into clothing. It is designed to power wearable electronics without depending on regular batteries, charging cables, sunlight, or other outside energy sources. The technology was developed by Yin and his research team. Their system can collect energy from two natural activities of the human body: movement and sweating . These two energy sources work together to make wearable electronics more reliable and efficient. Why Wearable Devices Need Better Power Sources Flexible electronics are becoming more common. Today, scientists are developing smart watches, health sensors, flexible displays, fitness trackers, and other ...

What if a wormhole could contain two rotating black holes? What if these black holes were connected to another region of spacetime by enormous cosmic strings? And what if the same wormhole also contained a naked ring singularity and paths that could theoretically allow time to loop back on itself? These are not ideas from a science-fiction movie. They are features of a remarkable mathematical solution of Einstein’s equations studied by physicist Gérard Clément . Clément examined a three-parameter stationary solution of the four-dimensional vacuum Einstein equations. In simple terms, this solution describes a very unusual spacetime structure: a Lorentzian wormhole containing two antipodal, co-rotating black holes . The solution is important because it combines several strange features of general relativity in one model. It includes a wormhole, two rotating black holes, cosmic strings, closed timelike curves, and, for almost all values of its parameters, a naked ring singularity. What Is...

Solar energy is rapidly becoming one of the most important sources of clean electricity in the world. Solar cells, which convert sunlight directly into electricity, are now widely used in homes, businesses, industries and large power plants. By producing electricity without burning coal, oil or gas, solar technology is helping countries reduce their dependence on fossil fuels and cut carbon emissions. Most solar panels used today are made from silicon. Silicon solar cells are reliable and efficient, but manufacturing them can be expensive and energy-intensive. For this reason, scientists and engineers are searching for alternative materials that could make solar power cheaper and easier to produce. One of the most promising alternatives is a group of crystalline materials known as perovskites . Researchers believe that perovskite solar cells (PSCs) could eventually offer a lower-cost and highly efficient alternative to traditional silicon-based solar cells. Now, researchers at Nanjing ...

What if black holes were born even before the first stars and galaxies existed? Scientists believe this may have happened just moments after the Big Bang. These mysterious objects are called primordial black holes (PBHs) , and they could help solve some of the biggest mysteries in the Universe, including the nature of dark matter . Now, a new study by physicist Cristian Joana has revealed something surprising. Using powerful computer simulations based on Einstein's theory of General Relativity, he found that the early Universe may have created primordial black holes in three different ways , not just one as previously thought. The discovery could change how scientists predict the number of primordial black holes in the Universe and improve our understanding of the Universe's earliest moments. What Are Primordial Black Holes? Primordial black holes are different from the black holes we usually hear about. Most black holes form when very massive stars run out of fuel and collaps...

Hydrogen peroxide (H₂O₂) is one of the world's most important industrial chemicals. It is used to disinfect medical equipment, clean semiconductor chips, bleach paper, treat wastewater, and support many chemical manufacturing processes. Although it is widely used, the way it is produced today is far from environmentally friendly. Traditional manufacturing requires large factories, consumes huge amounts of energy, and involves complex chemical processes. Now, researchers from South Korea and the United States have developed an innovative solution that could transform hydrogen peroxide production. A research team led by Professor Sunghak Park from the Department of Future Energy Engineering at Sungkyunkwan University , together with scientists from Korea University and Northwestern University , has created a new electrochemical system that can produce large amounts of eco-friendly hydrogen peroxide without using any external power supply . Their groundbreaking research was publishe...

Pulsars are some of the most mysterious objects in the universe. They are the tiny, incredibly dense remains of massive stars that exploded in powerful supernova explosions. Even though a pulsar is only about 20 kilometers wide, it can contain more mass than our Sun. Pulsars spin very fast, and some rotate hundreds of times every second. Because of this regular spinning, scientists often call them the most accurate natural clocks in the universe . However, these cosmic clocks sometimes behave strangely. Instead of slowing down smoothly over time, a pulsar suddenly speeds up for a short time. This unexpected event is called a pulsar glitch . Scientists have been trying to understand why these glitches happen for nearly 50 years. Now, a new study by Anantharaman and his research team has brought scientists one step closer to solving this mystery. Using one of the largest computer simulations ever created for neutron stars, the team discovered that glitches may happen because of a combin...