Uncover reality

The next generation of wearable electronics could soon become more comfortable, flexible and energy independent. Scientists are developing a new type of power-generating textile that can harvest energy from two sources that are always around us: sunlight and mechanical movement . In a recent development, Chen and his research team have created a micro-cable power textile that combines lightweight solar cells with fibre-based triboelectric nanogenerators. The result is a flexible smart fabric capable of converting both solar energy and everyday mechanical motion into electrical power. The technology could eventually be incorporated into clothing, curtains, tents and other fabric-based products , providing an entirely new approach to powering wearable electronics. The Challenge of Powering Wearable Electronics Wearable technologies are becoming increasingly common. Smartwatches, health-monitoring devices, sensors and other electronic systems can collect useful information while being ...

As the world becomes increasingly dependent on connected devices, wearable sensors, and the Internet of Things (IoT), scientists are searching for energy sources that are not only renewable but also capable of working continuously without batteries or external power. Now, researchers led by Guo have found an unusual solution hiding on the ground: fallen leaves . Instead of treating dry leaves as waste, the team developed a leaf-based energy harvester (LEH) that can generate electricity from moisture naturally present in the atmosphere. The technology combines the unique microscopic structure of leaves with a special moisture-absorbing iron hydrogel, turning an ordinary fallen leaf into a small energy-generating device. The approach could offer a sustainable way to power low-energy electronics while also giving a second life to an abundant natural material. Why Harvest Energy From Moisture? Many self-powered devices already exist. One promising technology is the triboelectric nanogener...

For decades, astronomers have dreamed of directly photographing Earth-like planets orbiting other stars. The challenge is enormous: a planet similar to Earth can be billions of times fainter than the star it orbits . The overwhelming glare of the star can completely hide the tiny world. Now, a NASA-led team is proposing an ambitious solution that could change how we search for potentially habitable planets. The concept, called the Hybrid Observatory for Earth-like Exoplanets (HOEE) , would combine a giant space-based starshade with one of the world's most powerful ground-based telescopes. If successful, the system could allow astronomers to directly image rocky exoplanets and potentially study their atmospheres for signs associated with life. A Telescope That Works With a Giant Space Shadow Instead of building an enormous space telescope, the HOEE concept takes a different approach. It would combine a space-based starshade , also known as an occulter, with a next-generation extreme...

Imagine a material that can literally show where and how hard it is being touched simply by changing its color. Scientists have developed a new type of hydrogel that can do exactly that. The material changes its optical appearance when stretched or mechanically deformed, creating visible patterns that reveal information about force and stress. Researchers led by Liu have developed a fatigue-resistant mechanoresponsive color-changing hydrogel , or FMCH. Unlike many existing materials that may weaken, lose their optical response, or become unreliable after repeated deformation, this hydrogel is designed to withstand thousands of loading cycles while continuing to produce predictable color changes. The technology could eventually help create more sensitive tactile sensors for robots, wearable devices, smart materials, and advanced optical systems. A Material That Turns Mechanical Force Into Color Mechanoresponsive materials are designed to respond to physical forces such as stretching, c...

Humanoid robots are becoming increasingly capable of walking, running and performing complex movements. But making a robot behave intelligently in a fast-changing environment is a much harder challenge. Soccer provides an ideal test because it requires a robot to see, think and move almost at the same time. A recent study by Wang and his team presents a new reinforcement learning (RL) system that allows humanoid robots to play soccer using only onboard vision. Instead of separating vision, decision-making and movement into different systems, the researchers developed a unified controller that connects perception directly with locomotion. The result is a robot capable of searching for a ball, chasing it and kicking it in different directions while continuously adapting its movements to imperfect visual information. Why Soccer Is So Difficult for Humanoid Robots For humans, playing soccer can look effortless. A player watches the ball, predicts where it will move, adjusts their body pos...

A drone can fly into places that are difficult or dangerous for humans to reach. It can inspect buildings, monitor forests, support search-and-rescue operations, and collect environmental data. But there is one major weakness: drones cannot stay in the air forever . Most micro aerial vehicles (MAVs) can fly for only tens of minutes and cover a limited distance before their batteries need to be recharged. This makes long-term missions difficult. Now, researchers Bredenbeck, Jadoenathmisier and Hamaza have explored a different solution: instead of continuously flying, a drone could land on a structure, attach itself, switch to a low-power state and wait. The remarkable part is that this drone does not depend entirely on cameras to find the perfect landing position. Instead, it uses something much more familiar to living creatures— touch . The Problem With Conventional Drone Perching Perching is inspired by birds and other animals that attach themselves to branches or surfaces and rest wh...

For most people, losing a permanent tooth means relying on a filling, crown, bridge, denture or dental implant. But Japanese researchers are exploring a very different possibility: making the human body grow new teeth naturally . Toregem BioPharma, a biotechnology company spun out of Kyoto University, is developing an experimental antibody drug called TRG035 . The treatment is designed to remove a biological barrier that normally prevents certain tooth-development pathways from becoming active. The company has recently raised US$5.3 million to support its next clinical study, bringing its total funding, including grants and subsidies, to more than US$29 million . The next major step is a Phase II clinical trial involving people with severe congenital hypodontia , a condition in which a person is born without several permanent teeth. The Science Behind Tooth Regeneration Unlike many animals, humans normally develop two generations of teeth: baby teeth and permanent adult teeth. Howeve...