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To achieve nuclear fusion for practical energy production, scientists often use magnetic fields to confine plasma. This creates a magnetic (or more precisely "magneto-hydrodynamic") fluid in which plasma is tied to magnetic field lines, and where regions of plasma can be isolated and heated to very high temperatures—typically 10 times hotter than the core of the sun! At these temperatures the plasma is nearly superconducting, and the magnetic field becomes tightly linked to the plasma, able to provide the strong force needed to hold in the hot fusion core. The overall plasma and magnetic field structure becomes akin to that of an onion, where magnetic field lines describe surfaces like the layers in the onion.

(PhysOrg.com) -- In the future, physicists will be able to follow a new lead in their search for new materials for electronic components, for example.