r/Superconductivity

103 archived posts · Jun 2014 – Jan 2019

Superconductivity

r/Superconductivity

Superconductors Tags: Superconductivity, voltage, futurism, maglev, levitation, zero electrical resistance, magnetic flux fields, critical temperature, Heike Kamerlingh Onnes, quantum mechanical phenomenon, Meissner effect, magnetic field lines, copper, silver, absolute zero, electric current, cuprate-perovskite ceramic, metallic hydrogen, helium, nitrogen, high-temperature superconductor, room-temperature, DC resistance, heat capacity, critical field, critical current density

Created Jun 18, 2014 · restricted

303Members (last snapshot)

103Archived posts

Welcome to r/Superconductivity. This subreddit is devoted to all news and discussion of superconductors.

#####What is 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 as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics." - Wikipedia

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