HISTORY OF REMOTE SENSING - Department of Geography

HISTORY OF REMOTE SENSINGIMPORTANT PERIODS The beginning: photography and flight (1858-1918) Rapid developments in photogrammetry (1918-1939) Military imperatives (1939-1945) Cold wars and environmental concerns (1946-1971) Dawning of a new age (1972-1986) Commercialization, and geo-location (1986-1999) No place left to hide (2000-future)STEPPING STONES 5th-4th Centuries and Greek philosophers describe the basic principles of optics and the camera. 1664-1666 Isaac Newton discovered that white light is composed of different colors. 1727 Johann Heinrich Schulze discovered that silver nitrate darkened upon exposure to light. Sun pictures LEADING TO .. 1814 Joseph Niepceachieves first photographic image with camera obscura- however, the image required eight hours of light exposure and later faded. 1837 Louis Daguerre's first daguerreotype - the first image that was fixed and did not fade and needed under thirty minutes of light du temple 1838 WORLD S OLDEST PHOTOGRAPHP hotography (as we know it) light drawing invented in the early1800 sView from the Window at Le Gras" (circa 1826)PHOTOGRAPHIC EXPLORATIONS From the beginning, the potential of aerial photography for topographic mapping was clear Early platforms used for aerial photos included: balloons pigeons kites ROCKETS, FROM 1897 ONA photo taken byAlfred Nobel in 1897,from a rock

• Remote sensing will only become more important but also more invasive in our future • None-the-less, it remains an important source of data for environmental monitoring, urban development, human rights watch, climate change, geological exploration, and much much more. • A tension exists between the surveillance aspects and

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  Remote, Sensing, Remote sensing

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