This, for people interested in “experimental archaeology/prehistoric (hunting +) technology”.
Baugh, Richard A. 2003. Dynamics of spear throwing. American Journal of Physics 719(4): 345-350.
Abstract:
The spear thrower (atlatl) is a hunting weapon with very ancient origins. It is a lever that enables wrist rotation to make a substantial increase in the velocity of a thrown spear. A model for throwing a projectile with an atlatl is presented. This model is used to analyze the projectile velocity as a function of the dimensions, rigidity, and mass distribution of the atlatl and mass of the projectile. The model assumes that the throwing force and wrist torque are functions only of the horizontal position of the throwing hand and that the spear is sufficiently long that the atlatl applies only a horizontal force to the proximal end of the spear. The applied force and torque were derived from a high-speed video digitizer plus the known physical dimensions of the atlatl and spear.
©2003 American Association of Physics Teachers.
Note that a few other releases have also appeared on the Web, but, unfortunately, they add little to what the Abstract provides us with in terms of palaeotechnology and experimental archaeology.
Jacques Cinq-Mars
