What fundamental principle allows a camera obscura to project an inverted image?
Answer
Light passing through a small aperture into a dark space
The camera obscura operates on a simple optical phenomenon where light travels in a straight line. When light from the outside environment enters a dark, enclosed space through a tiny hole or aperture, it projects an inverted image of the external scene onto the wall directly opposite the opening. This concept served as the optical foundation for all subsequent camera designs throughout history.

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