"In the progress of these lessons the time has now come to clear up much confusion regarding what is so commonly called "the curvature of space", and sometimes referred to as "this curved universe". [Walter Russell, Home Study Course]

See Also

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cube wave-field of zero curvature
curvature of electric potential pressure
curvature of gravity control
curvature of gravity
curvature
Magnetic cube of zero curvature
plane of zero curvature
zero curvature