This video is Coffee siphon heating by the Halogen Point Heater.

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No.5 Optical siphon table Heating of the tile Heating of the head of iron nails Heating of the refractory brick Heating of zinc alloy decorative metal Heating of wood series 2 – Japanese cedar Sugi Heating of the brass ring Heating, melting and vitrification of rocks series 23 – Sandstones