Fusion Power From a Floating Magnet?

Science  06 Aug 1999:
Vol. 285, Issue 5429, pp. 821-823
DOI: 10.1126/science.285.5429.821

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In a novel experiment that may ultimately lead to a simple, safe, and inexpensive fusion power source, energy-producing plasma would be trapped around a levitating ring of superconductor, a scheme inspired by observations of ionized gases trapped in the magnetic fields of planets like Jupiter and Earth. The project is part of a wave of experimentation now sweeping through the field of magnetic fusion as experimenters seek alternatives to current reactor designs (see sidebar).