Changes of a magnetic field of the Earth

One of features of our planet is its magnetic field. We shall enough not concern a complicated question about the reasons of its presence, but we shall emphasize, that it is one of necessary conditions of existence a life on our planet. All alive essences of the Earth millions years ���������������� in conditions of a magnetic field and without it cannot exist.

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Canadian scientist J.Crane investigated alive organisms which was in the special chamber with smaller, than terrestrial, intensity of a magnetic field. After 72-hour stay in such conditions sharply (in 15 times) decreased ability of bacteria to duplication, decreased activity of birds, at mice the metabolism rose. In case of longer stay in conditions of the weakened magnetic field in fabrics there were irreversible changes and barreness developed.

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