The attraction of the moon and the sun for the earth causes the tides. Use tides can produce electrical energy. People build dams to store water. Build coffers which can let water circulate. Also it must include gates to control the water. Near the gate they build water tubing generator. When there are flood tide and ebb tide water would pass through from the gates to get into a pool which store water and get water tubing generator move.
The attraction of the moon and the sun for the earth causes the tides. Use tides can produce electrical energy. People build dams to store water. Build coffers which can let water circulate. Also it must include gates to control the water. Near the gate they build water tubing generator. When there are flood tide and ebb tide water would pass through from the gates to get into a pool which store water and get water tubing generator move.