Informatika és tudomány

  • defiant9
    #91
    Érdekes vizsgálat a tisztán fa lándzsa és a kőhegyű fejlesztés közt:
    "stone tips break more frequently than wooden spears, they require more frequent replacement and upkeep, and the fragility of a broken point could necessitate multiple thrusts to an angry animal. So, why did early hunters begin to use stone-tipped spears?
    This is one explanation for an evolutionary advantage for tipping a spear with a stone, an innovation that may have significantly impacted the evolution of human life-history.
    Putting a fragile stone tip on a spear is risky,” said Schoville, “but we show that there are serious rewards in terms of both the size and shape of the wound created that made this innovation extremely worthwhile during our evolution.”

    Attaching a stone tip onto a wooden spear