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Night Vision

🥽 Illuminating the Dark: The Science of Night Vision 1 source This source examines the mechanics and evolution of night vision technology, highlighting three primary systems: active illumination, image intensification, and thermal imaging. Affordable digital units often rely on near-infrared light which, while accessible, can cause motion sickness and reveal the user’s position to others. In contrast, military-grade goggles physically amplify existing photons thousands of times through vacuum tubes and microchannel plates to provide high-resolution, real-time visuals without lag. The text also explains how thermal cameras detect heat signatures, allowing for visibility in absolute darkness or through thick smoke where other sensors fail. Ultimately, the overview traces the history of these devices from World War II snipers to modern search and rescue operations, illustrating how each generation has refined the balance between portability, concealment, and visual clarity.