Ancient Web: Stone Age Skills Tested 370 Hand-Drill Fire

Stone Age Skills documents a hands-on friction-fire experiment comparing dozens of spindle woods, four hearthboard materials, wood density, green and dead growth, and 370 possible hand-drill combinations without using metal tools.

Original site: http://stoneageskills.com/articles/handdrill1.html

Full Switchboard article: https://switchboardtechservices.com/articles/ancient-web-stone-age-skills-tested-370-hand-drill-fire-combinations/

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