Dumb it down for me if you can.

[Brian37]

https://thetartan.org/2019/2/18/scitech/how-stuff-works

I am not concerned about the artistic process.

I simply want to know how photography went from light hitting an object, which is what film is, to the ability to put that film into chemicals and replicate the original open aperture.

How did photography go from basically giant slabs to film to paper?

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Long ago, long before the internet, when I was a kid, one of my biggest fascinations with old photography happened in Jaws when Brody processed the film from the divers when he thought he saw a shark in the photo.

To this day I don't understand the process of how you capture light on film, first hand, but then transfer it to bigger print.