Multiple MatchingExercise 44 of 70

Photography as we know it began in the early 19th century with the invention of the camera obscura. These rudimentary devices projected light through a small hole onto a surface, allowing early experimenters to trace the outlines of real-world images. The breakthrough came when chemicals were used to permanently fix…

• Which section describes a time when people needed chemicals to make an image last?
• Which section discusses how photography became a hobby for non-experts?