01 January 1970 0 4K Report

Experimental tire cord steel has exhibited yield strength above 10^6 psi.  If the rim tension is the limiting factor, because the net that supports the rim, has no elements that are in the radial direction, then energy density can be impressive.

Suspending a light vessel, in the open sea, removes the necessity for a heavy containment chamber.  Counter-rotating coaxial pair of flywheels, has important safety features.

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