critical field

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Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

Wolfgang Amadeus Mozart. Mozart rehearsing his 12th Mass with singer and musician. (Austrian composer. (Johann Chrysostom Wolfgang Amadeus Mozart)

7 Famous Child Prodigies

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

7 of the World’s Deadliest Shipwrecks

The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)

New Seven Wonders of the World

Close-up of tobacco plants in Ontario, Canada. Tobacco, Nicotiana, cured leaves used after processing in various ways for smoking, snuffing, chewing, and extracting of nicotine.

7 of the World’s Deadliest Plants

Nero (Nero Claudius Caesar Augustus Germanicus) (ad 50-54) the fifth Roman emperor (ad 54-68), stepson and heir of the emperor Claudius.

Did Nero Really Fiddle as Rome Burned?

critical field

superconductors

Learn about this topic in these articles:

superconductivity

In superconductivity: Critical field
One of the ways in which a superconductor can be forced into the normal state is by applying a magnetic field. The weakest magnetic field that will cause this transition is called the critical field (H_c) if the sample is in the form…
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