When light enters through the pinhole camera it was projected into the paper, like a lens. The image comes out backwards so the light is flipped.
A solargraph has odd colors because finely divided metallic silver growing on silver halide grains form after being exposed to the light after a while. Afterwards you do not develop your picture, you just simply scan it.
Solargraphy is a method of photoghraphy used to capture the paths of the sun. A solorgraph is a picture taken with a pinhole camera that has a long exposure. A special characteristic of a solargraph is that it captures the movements of the sun and makes them visible.
A pinhole camera works when you place a sheet of light sensative photo paper inside a can that has been altered to only let light in through a small pinhole. By placing the camera where it can capture sunlight, a picture will then be projected onto the photo paper. The sunlight "burns" an image into the photo paper, and after a period of time you can expose the paper in a dark room to develop your picture.
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