Adhesives

The earliest adhesives appear to be plant resins (also known as “tree sap”), crushed and allowed to cure as the moisture evaporates out. Such glues are surprisingly good, since they’re basically doing what they evolved to do: congeal and hold things together. According to the internets there are glues dating back to 70,000BCE, which consist of powdered stone (ochre) mixed with resin.

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An Easy Piece

This was a really quick build. I completed the top part and the sides, then let it age against a wall for nearly a year, while I more or less decided that the problem it was intended to help with was endemic and it was no use to finish and install.

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