The chemistry of casein is still very obscure

For this project I researched the past of my late grandfather.
One of the few things that are known about his life
during the Interbellum and WWII is that he
was running a chemical lab in the centre of Amsterdam.
I inherited his archive, and from this material
I tried to reconstruct parts of his life during this period.
While doing this I played with fiction and truth
because my grandfather left many questions after his death.
I used a selection of original documents.
The documents are chronologicaly ordered.
In this order are some gaps that I have filled with other
original materials that suggested story lines that might be true.
Eventhough I found a lot of information about casein in his legacy
it is unlikely that my grandfather ever worked with this plastic.
During the exposure of this work I made every week casein.
I followed one of his recipes using 100 litres of milk.
I made replica's of his windows and covered them in the casein.
The casein dries out over time.
It cracks and falls down, leaving a see-through pattern on the glass of the windows.
And a growing pile of casein fragments on the floor.
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