Magnetic attraction

... you're measuring. If the fish become more active and you were measuring attraction to the magnet then "nothing" happened according to your recording criteria. Another thing, remember that magnetic fields decrease with relation to distance(r) with this relationship: 1/r^2

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... neutral filaments may be retrieved once the filament decays. The pseudo magnetic monopoles at the endings of open filaments in motion ionize atoms, ... ring with positive ions on its periphery could display ferromagnetic attraction), because magnetic polymers appear in a wide variety of materials ...

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... in cell membranes would be better for microorganisms than relying on magnetic attraction, unless aligning themselves along the North Pole would give them some advantage.. ...

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... and electrostatic properties. Some of the particles are magnetic and can generate gas in an aqueous solution. They also lead to the ... by ultraviolet light. Isolated particles can exhibit electrostatic attractions and repulsions and can also occasionally display ferromagnetism. ...

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... I wanted to share this with you....... Bacteria which sense the Earth's magnetic field Max Planck researchers uncover how a nanoscale 'compass' inside ... a stable chain, against their physical tendency to collapse by magnetic attraction. But using modern molecular-genetic and imaging processes, ...

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