Category: Engineering

ENG: Aalto University researchers have developed low-cost metacrystal panels that could help future 6G networks overcome one of their major limitations: signal blockage. As wireless systems move toward higher-frequency communication, they can offer much higher data rates, yet the signals become more sensitive to walls, corners, people, and other obstacles. Instead of adding more powered equipment such as routers, repeaters, or base stations, the proposed approach turns parts of the built environment into passive wireless infrastructure.

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ENG: Researchers at Osaka Metropolitan University have developed a more stable and lower-cost artificial photosynthesis system that produces formic acid from carbon dioxide and water. The system uses sunlight to convert CO₂ and water into a storable solar fuel, similar to natural photosynthesis. In conventional systems, an electrolyzer works together with solar cells to transform electrical energy into chemical energy, but maintaining efficient operation under changing sunlight usually requires batteries or electronic control systems such as Maximum Power Point Tracking.

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ENG: Research on color perception is helping clarify a century-old model developed by Erwin Schrödinger. A team led by Los Alamos scientist Roxana Bujack used geometry to mathematically define how people perceive hue, saturation, and lightness. Their work shows that these qualities do not depend mainly on external factors such as culture or learned experience, but are intrinsic properties of the color metric itself. This metric describes perceived color distance, meaning how different two colors appear to an observer. By formalizing these perceptual attributes, the researchers complete an important part of Schrödinger’s goal: a closed model of color based on geometric similarity.

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