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 ...
Does earth’s magnetic field secular variation control centennial climate change. Yves Gallet,,Agnès Genevey,Frédéric Fluteau. Earth and Planet . 2005Yves Gallet,,Agnès Genevey,Frédéric Fluteau.Does earth’s magnetic field secular variation control centennial climate change. Earth and Planet . ...
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...
Expand Your World with Science Learn and share the most exciting discoveries, innovations and ideas shaping our world today.SubscribeSign up for our newslettersSee the latest storiesRead the latest issueGive a Gift Subscription Follow Us:Return & Refund Policy About Press Room FAQs Contact Us Inte...
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, ...
8.In paragraph 6, why does the author discuss Earth's magnetic field? A. To cast doubt on its existence, given what scientists now know about Earth's composition B. To provide additional support for the theory of an iron-nickel core of Earth ...
Even the aircraft passing over this region increases their altitude to avoid magnetic interference. From this article we come to know that there are some places on the earth where strange or mysterious phenomena occurred and is said that it is because of the gravitationa...
NASA Is Watching a Vast, Growing Anomaly in Earth's Magnetic FieldSpace5 days ago Scientists Discovered An Amazing Practical Use For Your Leftover Coffee GroundsEnvironment2 days ago A Common Sleeping Pill May Reduce The Buildup of Alzheimer's Proteins, Study FindsHealth1 week ago...
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 ho...