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As global temperatures continue to rise, keeping buildings cool has become one of the biggest challenges for cities around the world. Air conditioners provide relief, but they consume huge amounts of electricity and release additional heat into the environment, making cities even hotter. Now, researchers at the University of Pennsylvania (Penn) have found an innovative solution inspired by one of nature’s largest land animals—the African elephant. By studying the elephant’s unique skin, scientists have created a low-cost cement tile that captures water and slowly releases it through evaporation, naturally cooling buildings without fans, compressors or high energy consumption. Their findings, published in Advanced Materials , could pave the way for greener, more energy-efficient buildings. Nature’s Cooling Secret Humans rely on sweating to cool down. When sweat evaporates from our skin, it removes heat and lowers body temperature. This natural cooling process is highly efficient. Howeve...

Imagine video games where flowing lava, splashing water, melting chocolate, or soft cake batter look incredibly realistic without slowing down your computer. That vision is getting closer to reality thanks to researchers at the Institute of Science and Technology Austria (ISTA) , who have developed two groundbreaking computer graphics techniques that improve visual quality while reducing computational cost. The research, presented at the prestigious SIGGRAPH conference in Los Angeles and published in ACM Transactions on Graphics , introduces smarter ways to create realistic digital surfaces and calculate complex 3D shapes. These innovations could influence the future of video games, animated movies, visual effects, virtual reality, and scientific simulations. Making Deformable Surfaces Look More Natural Creating realistic 3D objects has always been one of the biggest challenges in computer graphics. While solid objects such as tables or buildings are relatively easy to model, soft and...

Astronomers have discovered a fascinating new way to study the Universe. A team of researchers led by Salama has successfully simulated a rare phenomenon called "microlensing of microlensing." While the name sounds complicated, the idea is actually quite simple. It happens when light from a very distant object passes through two different galaxies , and the stars in both galaxies bend the light one after another. This discovery could help scientists learn more about black holes, distant galaxies, dark matter, and even the mysterious force called dark energy. It also opens a completely new way to study some of the farthest objects in the Universe. How Gravity Bends Light More than 100 years ago, Albert Einstein explained that gravity can bend light. Normally, we think of gravity as the force that keeps us on Earth or makes planets orbit the Sun. But very large objects, like galaxies, have such strong gravity that they can also bend the path of light. When a galaxy comes bet...

Dark matter is one of the greatest mysteries in science. Although it makes up about 85% of all the matter in the Universe , no one has ever seen it directly. Scientists know it exists because its gravity affects galaxies, stars, and the movement of objects in space. However, its true nature is still unknown. For many years, researchers searched for heavy dark matter particles called WIMPs (Weakly Interacting Massive Particles) , but no confirmed evidence has been found. Because of this, scientists are now studying new ideas. One of the most exciting is ultralight dark matter , a form of dark matter made of particles so light that they behave like waves instead of tiny solid particles. Now, physicists Philippe Brax and Patrick Valageas have proposed a new model that gives ultralight dark matter a special property—it can repel itself instead of only being pulled together by gravity. Their study shows that this could create stable space objects called solitons , offering a new way to un...

3D printing has become one of the most exciting technologies of the modern world. It is used to make everything from toys and machine parts to medical implants, wearable devices, and even houses. One of its biggest advantages is that it allows people to quickly create custom designs without using traditional manufacturing methods. However, today's 3D printing technology still has some major problems. Many printing methods consume a lot of electricity or need extra processing after printing. This makes the process slower, more expensive, and less efficient. Now, a team of researchers led by Qing Li has developed a new 3D printing technique that could solve these problems. Their new method allows soft materials to become solid in just a few seconds without needing continuous heat, light, or electricity. This breakthrough could make 3D printing faster, cheaper, and much more energy-efficient. Why Current 3D Printing Methods Have Problems Although 3D printing has improved greatly over...

Imagine typing a letter on your keyboard and watching it instantly appear as a glowing hologram in midair. Or playing a holographic version of Snake or Tetris where every move is controlled by light itself. What once seemed like science fiction is now moving closer to reality. Researchers at the University of Stuttgart have developed a groundbreaking programmable metasurface that can dynamically control light at the level of individual pixels. Unlike traditional optical devices that perform only one fixed function, this new technology can be reprogrammed in real time using simple electrical signals. The achievement could pave the way for next-generation holographic displays, smart wearable devices, advanced communication systems, and intelligent optical technologies. The research, published in Nature Communications , marks an important milestone in the evolution of active metasurfaces. What Is a Metasurface? A metasurface is an ultra-thin optical material made up of millions of tiny n...

Imagine an underwater robot or a diver's glove that can feel touch, detect damage, repair itself, and keep working without a battery . It may sound like science fiction, but researchers at the National University of Singapore (NUS) have developed exactly that. Their new invention is called the Self-Healing Magnetoelectric Sensory System (SMES) . This advanced electronic skin is designed to survive one of the toughest environments on Earth—underwater. Unlike traditional electronic sensors that stop working after being damaged, this new technology can detect injuries, heal itself, and continue operating without needing an external power source. The breakthrough could transform the future of underwater robotics, diving equipment, wearable electronics, prosthetic limbs, and soft robots. A Big Challenge for Underwater Electronics Underwater environments are extremely difficult for electronic devices. Water pressure, sharp rocks, shells, and continuous movement can easily damage delica...