DUAL Magnetic Monopole fields observed in my experiments and suggested for Birds ( Pigeon) navigation capacity.

Earth Magnetic field Lines (10) translated into dual monopole field line bubbles North (6) and South (5). Mu metal sheets formed like tubes or containers, seem to reject the monopole field Lines, with the result that compass needles inside such shieldings are able to measure the boundary layer direction between the local North and South monopole bubble strength.
Other experiments are found to support the existence of two different ( N+S) monopole magnetic fields on earth and around magnets.
Around each currents in a wire this dual monopole effect is the origin of a so called tubular magnetic field reduction also called Anti Maxwell dip (or B field) also observed around long small solenoids.
See also :  "weak B field near a solenoid"  
https://bigbang-entanglement.blogspot.com/2006/03/evidence-for-earth-magnetic-double.html
and: New Physics by Table Top Experiments. https://www.vixra.org/pdf/1309.0081v2.pdf
and: Quantum Gravity and Electro Magnetic forces by dual repulsive vacuum oscillation spectra in FFF-theory. https://vixra.org/pdf/1103.0024v7.pdf
and: EM Drive Thruster by Anti Maxwell Monopole Tubular Field Reduction Around a Conductor.
https://vixra.org/pdf/1905.0244v2.pdf

See also:  for kitchen table test see:
EM Drive Thruster by Anti Maxwell Monopole Tubular Field Reduction Around a Conductor. 
https://vixra.org/pdf/1905.0244v2.pdf

see also: Anti Symmetric Bifilar Tesla coil for EM Drive.