Pierre a écrit :Un outil simple, mais de la haute technologie.

Haute technologie pompée à des primitifs…
Le Quercus a écrit :
Très belle réalisation, en quel bois est il ?
Aucun souvenir, il a été fait il y a très longtemps — oublié de noter l’essence utilisée.
Assez tendre pour pouvoir insérer facilement le foret.
Parmi d’autres perfectionnements, les portes-forets étaient utilisés par certains natifs de la Côte Ouest des U.S.A., illustré par ces 2 gravures extraites de
Fire-making apparatus in the U.S. National Museum, Houg Walter_ 1888.
L’auteur précise : «
The Klamaths, of Oregon, of the Lutuamiau stock, use a fire apparatus that looks very much like that of the Utes. The hearth is a rounded piece of soft wood thinned down at the ends (fig. 4).The drill is a long, round arrow-stick, with a hard-wood point set in with resin and served with sinew (see Ute drill, fig. 7). The holes in this hearth are very small, being less than three-eighths of an inch in diameter. They are in the center, and the fire slot being cut into the rounded edge widens out below, so that the coal can dropdown and get draught. The wood is quite soft, apparently being sap-wood of yew or cedar, while the drill point is of the hardest wood obtainable. It is probable that sand is used on the drill. The hearth is 13 inches long, and the drill 26.
[…]
The Pai-Utes, of Southern Utah, make their hearths of a short, rounded piece usually of the sapwood of juniper. It is tied to the drill with a thong of buckskin when not in use (fig. 7). The drill is like the usual one, just described. This is the common form of the Pai-Ute apparatus. The small, two-holed hearth of rounded form, and the shortened, spliced drill are for convenience of carrying, this kind being used by hunters while away from the lodges. Mr. S. J. Hare says that the men do not usually make the fire, except when out on a hunting excursion. At the lodge it is the squaw's duty to make the fire when it is needed. »
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Si ça intéresse quelqu’un, il est possible de développer sur les améliorations des planchettes.