The lecture of the teaching seminar held at the Faculty of Dentistry of the University of Kufa. The red mercury is a substance that has been
known since the 1980s and many still believe in its existence, although it is not known for its origin or structure. Mercury is a conductor of the electric current and mercury (superconductor) becomes non-resistant to the current while absolute zero temperature is 273.16 ° C, the temperature at which the motion of the particles stops, Dr.Qisma explained. The extraordinary character of superconductivity is not only due to the lack of electrical current resistance but also to the production of high magnetic fields without the use of iron-hearted coils. The electricity can be stored inside it and the properties of mercury are extended and contracted by temperature the lecturer added.