Bow drill

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Size: 3508px × 2480px
Location:
Photo credit: © Dorling Kindersley: Edward Byrne / Square Egg Studio / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: arrow, background, bow, bowstring, colour, construction, copu, diagram, drill, early, education, egypt, fire, fires, friction, heat, horizontal, illustration, image, instruction, inventions, lighting, people, prehistoric, scheme, science, space, tools, white