Professor: Think of earth as a one big giant magnet. So, earth is surrounded by a magnetic field, and we know that every magnet has a north and a south pole and things get oriented toward those poles. Earth is no exception, right? Male student: Right. Professor: Okay, keep in mind ...
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Fluteau (2005), Does Earth's magnetic field secular variation control centennial climate change?, Earth Planet. Sci. Lett., 236, 339-347.Does earth’s magnetic field secular variation control centennial climate change. Yves Gallet,,Agnès Genevey,Frédéric Fluteau. Earth and Planet . 2005...
A. It has no relation to the Earth's interior structure. B. It can only tell us about the surface temperature. C. Changes in the magnetic field can indicate the movement of materials in the core. D. It can directly show the thickness of the mantle. 相关知识点: 试题...
Life as we know it could not exist without Earth's magnetic field and its ability to deflect dangerous ionizing particles from the solar wind and more far-flung cosmic rays. It is continuously generated by the motion of liquidironin Earth'souter core, a phenomenon called the geodynamo. ...
Physicist: High energy charged particles rain in on the Earth from all directions, most of them produced by the Sun. If it weren’t for the Earth’s magnetic field we would be subject to bursts of radiation on the ground that would be, at the very least, unhealthy. The more serious, ...
Tests have shown that mankind may have the same inborn sense of Earth's magnetic field that has long been proved to exist in animals. By putting a protein from the human retina(视网膜)into fruit flies, researchers noticed that the insect adjusted its flight path just as ...
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For instance, sea turtles can navigate the oceans because they might possess amagnetic compasswhich helps them follow complicated migratory pathways. That is not a hardwired instinct because it is influenced by the magnetic field of the Earth. Similarly, a cat would not know how...