Superconductor
Superconductivity is a phenomenon displayed by certain conductors that show no resistance to the flow of electric current. Conductors are materials in which the electron current goes through. There are 4 different kinds of conductors. Insulators, like glass or wood, have a very high resistance to electron current while semi-conductors, such as silicon, have a medium resistance. Conductors, like copper and other metals, have very low resistance, and superconductors, comprised of certain metals such as mercury and ceramics such as lanthanum-barium-copper-oxide, have no resistance. Resistance is an obstacle in the flow of electricity. Superconductors also have strong diamagnetism. In other words, they are repelled by magnetic fields. Due to these special characteristics of superconductors, no electrical energy is lost while flowing and since magnetic levitation above a superconductor is possible. This principle is employed in high-speed trains that travel at 483 km/h (300 mph) while levitating on a cushion of air.When superconductivity was first discovered, it was established that the compounds needed to be cooled to within several degrees Kelvin to absolute zero
In the future, many scientists expect to have many new things due to superconductivity. Room temperature superconductivity would totally revolutionize the electrical power industry by making copper wires obsolete. Superconductivity would also improve transportation by changing the way trains, cars, and ships run. Magnetically levitated trains have the advantages of speed and quiet operation and the same magnetic levitation could be used with cars. Drivers would travel as fast as 150 mph on a highway and they would never have to worry about collisions. Ships propelled by superconducting motors would weigh less and would be more maneuverable. In conclusion, superconductivity will have a tremendous impact on our future, totally revolutionizing our way of life.
Some topics in this essay:
SUPERCONDUCTIVITY Superconductivity,
Cooper Pairs,
Commercial Superconductors,
Axial Tomography,
Density Applying,
APPLICATIONS Electricity,
Meissner Effect,
Barium Copper,
Kamerlingh Onnes,
Future Developments,
magnetic field,
critical temperature,
critical field,
liquid helium,
magnetic fields,
bcs theory,
current density,
critical temperatures,
high-temperature superconductors,
cooled below critical,
type ii,
below critical temperature,
value critical field,
degrees kelvin absolute,
field critical field,
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Approximate Word count = 2790
Approximate Pages = 11 (250 words per page double spaced)
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