I crafted a spear and spear thrower using only primitive tools. Leverage and design improvements enhanced throwing accuracy.

Experience the ingenuity of primitive engineering as a master builder crafts a stunning circular underground pool using only simple hand tools and natural materials. Watch as the process unfolds from ...

A POPULAR yet accurate account of savage life would supply an obvious want; and though Mr. Scott Elliot's contribution is interesting and readable, it still leaves the field open to some more ...