A mine that mines such as iron ore, copper, nickel, potash, aluminum. How long such as years or months.
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One force is static electricity - different charges on the plastic rod and the paper attract each other and the other force is ferromagnetism - the pull of a magnetic field on certain metals, particularly iron.
First applications to applicable government bodies for license to mine. Second arranging assays to see if where you want the mine contains the minerals worthwhile. Third gaining funding and permission to open the mine. Fourth opening mine and obtaining appropriate equipment to perform mining operations. Fifth possible addition of smelter to provide finished material to customers. Initial process could be months as permission times vary along with environmental clearances which can take years (1-3). Then the assays which take another few months or more depending on number of core samples you do or are required to prove the field. Once the above is done you have to have permission to mine etc and the environmental clearances for the mine and show you have environmental protections planned etc. Again months. Depending on the country you plan to do this it could be from just over a year to several years to bring the mine into operation.
