Matter & Energy News -- ScienceDaily

• This flat chip uses twisted light to reveal hidden images
  Using advanced metasurfaces, researchers can now twist light to uncover hidden images and detect molecular handedness, potentially revolutionizing data encryption, biosensing, and drug safety.
• Why broken crystals are stronger
  Crystals may seem flawless, but deep inside they contain tiny structural imperfections that dramatically influence their strength and behavior. Researchers from The University of Osaka have used the sophisticated math of differential geometry to reveal how these defects—like dislocations and disclinations—interact in elegant, unified ways. Their findings could help scientists engineer tougher, smarter materials by intentionally leveraging these flaws rather than avoiding them.