Hammer

: As metallurgy advanced, hammer heads transitioned from stone to bronze around 3,000 BCE, and eventually to iron and steel by 1,200 BCE.

A hammer works by storing kinetic energy during the swing and releasing it rapidly upon contact. This process multiplies force: because the head stops over a very short distance, the force it applies to the target is significantly higher than the force used to swing it. hammer

: The earliest hammers were simple stones used for crushing and hammering. It took approximately 2.5 million years for early ancestors to begin attaching handles, typically made of sticks, to these stone heads. : As metallurgy advanced, hammer heads transitioned from

: Modern high-end hammers often use titanium. Titanium heads are lighter but transfer energy more efficiently with less recoil and vibration, which reduces user fatigue and repetitive strain injuries compared to traditional steel. : The earliest hammers were simple stones used

: A heavier, longer version of the claw hammer with a straighter claw, used for prying boards and heavy construction.

: A large, heavy head on a long handle used for demolition and driving stakes.

: Specialized hammers filled with steel shot or rubber to absorb recoil energy, preventing the head from bouncing. Cultural and Symbolic Significance