The glowing material is molten glass. She gathers really hot glass onto pipe and makes drawings on paper. Paper that she uses is extremely thick, almost like a slice of plywood, so surprisingly it doesn't get burnt so easily. Etsuko had an exhibition in Pressiton Art Gallery (Pressiton Building, Miami FL)

Pyrography means "writing with fire" and is the traditional art of using a heated tip or wire to burn or scorch designs onto natural materials such as wood or leather. Burning can be done by means of a modern solid-point tool (similar to a soldering iron) or hot wire tool, or a more basic method using a metal implement heated in a fire, or even sunlight concentrated with a magnifying lens.
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