Reference Terms
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Aerial photography
Aerial photography is the taking of photographs from above with a camera mounted, or hand held, on an aircraft, helicopter, balloon, rocket, kite, skydiver or similar vehicle. It was first practiced by the French photographer and balloonist Nadar in 1858. The use of aerial photography for military purposes was expanded during World War I by aviators.
Aerial photography is used in cartography, land-use planning, archaeology, movie production, environmental studies, espionage, commercial advertising, conveyancing, and other fields.
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Matter & Energy News
September 29, 2025
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Sep. 22, 2025 — Scientists have developed a new multi-layered metalens design that could revolutionize portable optics in devices like phones, drones, and satellites. By stacking metamaterial layers instead of ...
Sep. 21, 2025 — Scientists have created a perovskite-based gamma-ray detector that surpasses traditional nuclear medicine imaging technology. The device delivers sharper, faster, and safer scans at a fraction of the cost. By combining crystal engineering with ...
Sep. 21, 2025 — Scientists have discovered that ordinary ice is a flexoelectric material, capable of generating electricity when bent or unevenly deformed. At very low temperatures, it can even become ferroelectric, developing reversible electric polarization. This ...
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