11. :There is no reason to assume the geomagnetic field has any effect on human health. 12. That is, the magnetite ( or greigite ) aligns in the direction of the geomagnetic field . 13. This effect is due to disturbances of the geomagnetic field by charged particles from the Sun. 14. Highly directional swimming by scalloped hammerhead sharks, Sphyrna lewini, and subsurface irradiance, temperature, bathymetry, and geomagnetic field . 15. Consistent with the drifting in the dark, HD cells are not sensitive to the polarity of geomagnetic fields . 16. On the Vanguard 3 mission ( 1959 ) a "'proton processional magnetometer "'was used to measure geomagnetic fields . 17. The observatory has two buildings; the first building has magnetometers that record changes occurring in the geomagnetic fields . 18. The strength and uniform direction of the geomagnetic field could systematically bias photoelectron trajectories and timing in the PMTs. 19. Convective motion in the core generates electric currents through dynamo action, and these, in turn, generate the geomagnetic field . 20. Within this geomagnetic field 80 % of " Tochuina " made a turn to the left or magnetic east.
