Superconductivity Superconductivity Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials, called superconductors, when cooled below a characteristic critical temperature. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911, in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor during its transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of
Heike Hennig and in international festivals. Heike Hennig arranged for the former dancers of the Leipzig opera to return on stage. Ursula Cain, Christa Franze, Siegfried Prölß und Horst Dittmann, who at this time were about 80 years old, told and danced their dance and life stories which were shaped by Mary Wigman, Dore Hoyer, Gret Palucca and Heike Hennig. During the shooting, the next dance piece "Zeitsprünge (Leaps in Time)" was created. here, the protagonists meet up with their younger colleagues in the ensemble "Heike Hennig & Co" and DJ cfm. The different generations might be recognized from the various dance-styles