What technology did the Kodak Brownie use to replace fragile glass plates?

Answer

Flexible roll film

Before the introduction of roll film, photography largely depended on using heavy and fragile glass plates that were difficult and dangerous for casual users to manage. Roll film offered a flexible alternative coated with an emulsion that could be spooled inside the camera. This innovation allowed for a compact and durable design that was easy to manufacture and could be mailed back to the factory for processing without breaking.

What technology did the Kodak Brownie use to replace fragile glass plates?
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