Science Weekly, September 28th, 2001
Early Cameras
Have you ever looked at a photograph and wondered how it was made? The ancient Greeks were able to produce images in darkened rooms. They let light enter the room through a small hole in one wall. The image appeared upside down on the opposite wall. This was called a "camera obscura." Artists used these images to make sketches. The word "photography" comes from the Greek words meaning "to write or draw with light."
Photographs and Light
Light is a very important in making a photograph. When you take a picture, you are really trapping a little bit of light on film. The film i...
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