54.9 MB (8.4 MB compressed)
6531 x 2937 pixels
55.4 x 24.9 cm ⏐ 21.8 x 9.8 in (300dpi)
SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY
Carbonisation is the conversion of wood into carbon by means of pyrolytic action, where thermochemical decomposition occurs at temperatures above 280 C. in the absence of oxygen. The charcoal manufactured for the purpose of gunpowder had to be of the highest grade and consistent in quality and was economically achieved with this industrial process.
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