| | Knowledge Problem: January 2004 Archives (Site not responding. Last check: 2007-10-07) |
 | | The current (no pun intended) challenge is the liquid nitrogen sheath required to keep the superconductor wires and transformers sufficiently cold. |
 | | As Deborah Jin, one of the researchers who made the discovery, said in this CNN interview, |
 | | Jin stressed her team worked with a supercooled gas, which provides little opportunity for everyday application. |
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