Superconductors About Superconductivity How would you like to board a Maglev train and then speed off to your destination at more than miles per hour? The magnets that levitate these trains are an application of superconductivity. Metals are good conductors of electric current.
What are superconductors, and when will we all get maglev trains and unlimited electrical power? By Graham Templeton on June 23, at Superconductivity is one of those concepts — like electron spin or time dilation — that seems somewhat esoteric, but Superconductivity and maglev trains, if mastered through technology, could truly revolutionize the world.
However, all superconductors currently known have to be actively kept in that state through the input of energy; we have to keep them below a certain critical temperature, and often supplement this by applying a magnetic field to knock out any few remaining internal forces.
The temperature thresholds are incredibly low, and thus incredibly expensive to maintain. Aluminum, for instance, has a superconducting temperature threshold of 1. The physics involved are either quite simple or quite complex, depending on the material.
In pure metals or simple metal alloys, superconductivity comes about basically when the atoms of that material have been cooled slowed to the point that electrons are not scattered as they try to move through the lattice of metal atoms.
More complex materials, some of which can achieve superconductivity above cryogenic temperatures, are decidedly within the realm of quantum weirdness, and have to do with transient interactions between electron pairs. Not even bleeding edge science can look particularly advanced, on a construction site.
Much of the shocking expense of the Large Hadron Collider came from the same source. This is also referred to as high-temperature superconductivity or for the truly ambitious room-temperature superconductivity. A high temperature for a superconductor is, basically, any temperature that scientists can create for an acceptable energy cost.
Maglev trains would be the logical choice in almost every case, if not for how prohibitively expensive they are. There are, in a general sense, two. With affordable-enough and practical-enough superconducting material, we could ship our electrons across the Atlantic.
We could turn municipal transit lines into magnetically levitated bullet trains.
In general, it could allow the large-scale application of technologies previously only possible on the small scale, or in special, well-funded labs. Different crystal structures can do the work diamond works, as mentionedbut what scientists have found is that they can achieve the same results in complex mixed materials — though the physics of precisely why that is are currently unclear.
A diagram of the internal workings of the superconducting cable in Essen, Germany.SCMAGLEV superconducting maglev is the fastest and most efficient train in the world based on the principle of magnetic repulsion between the track and cars.
SCMAGLEV superconducting maglev is the fastest and most efficient train in the world based on the principle of magnetic repulsion between the track and cars.
Feb 21, · This feature is not available right now. Please try again later. SCMAGLEV superconducting maglev is the fastest and most efficient train in the world based on the principle of magnetic repulsion between the track and cars. About Superconductivity. How would you like to board a Maglev train and then speed off to your destination at more than miles per hour?
The magnets that levitate these trains are an application of superconductivity. Maglev train: Maglev train, a floating vehicle for land transportation that is supported by either electromagnetic attraction or repulsion.
Maglev trains were conceptualized during the early s by American professor and inventor Robert Goddard and French-born American engineer Emile Bachelet and have been in. MAGLEV The flying train. Trains that levitate thanks to the use of a magnetic field are called “Maglevs”, which stands for “Magnetic Levitation trains”.