Some physicists have conjectured that the two possible nuclear spins of P-31 make it ideal for use as the basis for solid-state quantum computing.

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Nuclear experts also noted that North Korea could be facing similar technical difficulties as Iran in operating the equipment, which spins at supersonic speeds and can easily break apart or leak uranium gas if its parts aren't balanced and fortified with high-end metals.

WSJ: North Korea Nuclear Find Raises Fears It Will Share With Iran