A temperature of 2 to 3 billion degrees Kelvin — hotter than the interior of any known star — has been achieved in a lab in New Mexico. The temperature record was set recently in a test shot at the Z Pinch device at Sandia National Laboratory, where an immense amount of electrical charge is stored in a device called a Marx generator. Many capacitors in parallel are charged up and then suddenly switched into a series configuration, generating a voltage of 8 million volts.
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