Xe nước muối tự làm
Gelsonlab HSTM-068 Đồ chơi Khoa học Giáo dục Tự làm Xe nước muối
Xe nước muối tự làm uses magnesium air salt water battery as the power supply to drive the motor to rotate. Understand that magnesium air salt water battery is a kind of chemical reaction device which converts chemical energy of magnesium alloy and brine into electric energy. It is one of volt batteries and its application.