Retracing the Chemistry of the First Photograph

StarEmperor writes: "CNN has this article about experts trying to determine how the world's oldest known photograph (1826!) was produced." Even though the basic process is known, the details of how it was produced are lost.

Comments

Reverse Engineering

[Chayce]

Perhaps instead of trying to use a lot of different means to determine the chemical makeup. (which has probably been altered to quite an extent by the development process, and the long term exposure to light) we should instead experiment to reproduse the results with chemicals we know to have been avalible back then.