Staff Emeritus Science Advisor Homework Helper 12,811 1,673 stedwards said: 1) Is there any evidence that the Earth's magnetic field originates in the core rather than elsewhere? What, you mean like Cincinnati? 2) Is there a compelling physical model? Yes, there is. http://en....
The strength of a dipole is measured as the magnetic. The moment is a vector, meaning it has a magnitude, or size, as well as a direction. When considering magnetic poles, such as those in a bar magnet, the magnetic moment (m) is defined as the strength of the poles (p) multiplied...
Thus the reason a compass needle points in the direction humans have labeled "magnetic north" is that the needle is compelled to orient itself in the same direction as Earth's magnetic field, owing to a shift in the electrons in the atoms of the needle's material in response to the field...
Earthitself is a giant magnet. The planet gets its magnetic field from circulatingelectric currentwithin the molten metallic core, according toNASA. Acompasspoints north because the small magnetic needle in it is suspended so that it can spin freely inside its casing to align itself withEarth's ...
J. A. Jacobs Rights and permissions Reprints and permissions About this article Cite this article Jacobs, J. Earth science: What triggers reversals of the Earth's magnetic field?. Nature 309, 115 (1984). https://doi.org/10.1038/309115a0 Download citation Issue Date10 May 1984 DOIhttps:/...
@Qohe1et - Given what we know about the strength of a magnetic field, perhaps it would be possible to build an anti gravity device someday. Right now anti gravity is relegated to the domain of fringe or junk science. I realize there are people on the Internet who claim to have already...
Magnetic flux is a physical quantity that represents the distribution of a magnetic field and is a scalar quantity. If there are two magnetic fluxes in opposite directions across a plane, then the magnetic flux in the plane is the algebraic sum of the magnetic fluxes in the opposite direction...
significantly manifested in many new features, and manufacturing equipment technology with a specific function using these characteristics, is called nanotechnology. Nanotechnology is a multidisciplinary interdisciplinary field, the contents of modern science and technology. ...
4. Can a human tissue or organ be fully regenerated? 4.人体组织或器官可以完全再生吗? 5. How is immune homeostasis maintained and regulated? 5.如何维持和调节免疫稳态? 6. Is there a scientific basis to the Meridian System in traditional Chinese medicine?
combined with general relativistic solutions endowed with a poloidal magnetic field obtained by solving Einstein-Maxwell's field equations in a self-consistent way, we generate a phenomenological fit for the magnetic field distribution in the stellar polar direction to be used as input in microscopic...