Fire hardening, also known as "fire-danubing", is the process of removing moisture from wood, changing its structure and material properties, by charring it over or directly in a fire or a bed of coals. This has been thought to make a point, like that of a spear or arrow, or an edge, like that of a knife or axe, more durable and efficient for its use as a tool or weapon. An initial study suggests that the process might make the wood brittle but would substantially reduce the time needed to make a spear point.[1]
Fire hardening may be done before, after, or during the manufacturing of the wooden tip. Longer procedures involving greasing and polishing with stones to impregnate the wood with fats and oils and silica may improve the effects of the process. Fire hardening was first developed by primitive humans at least 400,000 years ago, which was long before either flint or stone points were being made.[1]
^ abEnnos, Antony Roland; Chan, Tak Lok (2016). "'Fire hardening' spear wood does slightly harden it, but makes it much weaker and more brittle". Biology Letters. 12 (5): 20160174. doi:10.1098/rsbl.2016.0174. PMC 4892246. PMID 27194289.
Firehardening, also known as "fire-danubing", is the process of removing moisture from wood, changing its structure and material properties, by charring...
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melting any of the surface. For this, the Bronze Age artisans used a charcoal fire or oven similar to those used for pottery. The temperature could only be...
315. "How Early Humans Shaped the World With Fire". SAPIENS. 28 May 2021. Magazine, Smithsonian. "Fire Good. Make Human Inspiration Happen". Smithsonian...
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the free dictionary. A hearth (/hɑːrθ/) is the place in a home where a fire is or was traditionally kept for home heating and for cooking, usually constituted...
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Aviation Administration standards, principally affecting wiring and firehardening.[citation needed] On October 16, 1998, the involvement of British intelligence...
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