Acid Ball
I am mildly obsessed with this structure. It is called an acid ball, used in the breaking down of wood fiber in the paper-making process. This retired unit is n...
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I am mildly obsessed with this structure. It is called an acid ball, used in the breaking down of wood fiber in the paper-making process. This retired unit is now on display in Bellingham, Washington, US. It has been coated with a reflective glass material which makes it reflect light in odd, unpredictable ways.
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