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Direct linkQuinnell, Justin – Primary Science, 2012
The camera obscura (Latin for "darkened room") is the earliest optical device and goes back over 2500 years. The small pinhole or lens at the front of the room allows light to enter and this is then "projected" onto a screen inside the room. This differs from a camera, which projects its image onto light-sensitive material.…
Descriptors: Teaching Methods, Science Instruction, Optics, Light
