USA HISTORY

Detailed explanation-1: -panning, in mining, simple method of separating particles of greater specific gravity (especially gold) from soil or gravels by washing in a pan with water.

Detailed explanation-2: -Panning. Panning uses water to separate heavy gold particles from other lighter particles within a medium sized pan. In this process sediment or ore thought to contain gold is placed in a wide, curved pan along with water. The miner moves the pan in a series of motions designed to eject lighter sediments.

Detailed explanation-3: -Gold prospecting is the act of searching for new gold deposits. Methods used vary with the type of deposit sought and the resources of the prospector. Although traditionally a commercial activity, in some developed countries placer gold prospecting has also become a popular outdoor recreation.

Detailed explanation-4: -Puddling was a process which separated gold from clay by putting the material into a container, over which water was poured. During mixing, the clay would dissolve in the water while heavier particles, such as gold, sank to the bottom.

Detailed explanation-5: -A rocker box (also known as a cradle) is a gold mining implement for separating alluvial placer gold from sand and gravel which was used in placer mining in the 19th century.