Physicists at ETH Zurich have developed an ultra-thin lens capable of converting infrared light into visible wavelengths. This breakthrough, achieved using lithium niobate metasurfaces, could revolutionize imaging technology by enabling compact, high-performance optical devices. How Metalenses Work Traditional lenses rely on curved glass to bend light toward a focal point, but metalenses use nanoscale structures ...
Gravity has been recognized to be one of the fundamental forces of nature for a long time and is a subtle pull that keeps galaxies from separation and planets orbiting. But what if it’s not a force? What if gravity is just an effect of something more bizarre that is the universe operating as a ...
Physicists have uncovered the mechanical forces that shape the iconic structure of rose petals, revealing how geometric frustration influences their curling patterns. This discovery provides insights into the physics of natural growth and could inspire new developments in shape-morphing materials. Understanding Geometric Frustration Unlike most flowers, which exhibit wavy or smooth petal edges, roses develop ...
The speed of light was a mystery for millennia, a fugitive constant that escaped measurement and understanding. Now among the most basic foundations of contemporary physics, it shapes our knowledge of space, time, and the very fabric of reality. Light’s speed is more than just a number; it’s a cosmic speed limit, a ruler for ...
