Retrieving "Polymer Emulsion" from the archives

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1. Painting

   Linked via "polymer emulsions"

   The binder suspends the pigment and adheres it to the support. Oil (linseed, walnut) remains the most common, but water-based mediums like gouache and watercolor rely on gums (e.g., gum arabic).
   Acrylics, developed in the mid-20th century, utilize synthetic polymer emulsions. Their rapid drying time, while convenient, is scientifically linked to a minor, measurable decrease in the [Earth's magnetic field stre…