Dynamo theory questioned
نویسندگان
چکیده
منابع مشابه
Solar Dynamo Theory
TheSun’smagnetic field is the engine and energy source driving all phenomena collectively defining solar activity, which in turn structures the whole heliosphere and significantly impacts Earth’s atmosphere down at least to the stratosphere. The solar magnetic field is believed to originate through the action of a hydromagnetic dynamo process operating in the Sun’s interior, where the strongly ...
متن کاملTowards a Computational Theory of Questioned Document Examination
The professional expertise of Questioned Document Examination [QDE] is significantly concerned with handwriting. Motivated by establishing a scientific basis for the field, a computational model for determining the handwriting styles of individuals is described. The primarily focus is on algorithms to take scanned handwritten documents as input and extract discriminating elements or visual feat...
متن کاملOutstanding Issues in Solar Dynamo Theory
The magnetic activity of the Sun, as manifested in the sunspot cycle, originates deep within its convection zone through a dynamo mechanism which involves non-trivial interactions between the plasma and magnetic field in the solar interior. Recent advances in magnetohydrodynamic dynamo theory have led us closer towards a better understanding of the physics of the solar magnetic cycle. In conjun...
متن کاملDynamo Theory and Earth’s Magnetic Field
The Earth’s magnetic field belongs in that class of physical phenomena which are commonplace yet also very complex. It is commonplace in that almost everyone knows that it exists, yet not very many people (probably including a good percentage of physicists) know how it works. The theory behind the generation of a magnetic field, known as dynamo theory, is still an active area of research. The e...
متن کاملMHD dynamo generation via Riemannian soliton theory
Heisenberg spin equation equivalence to nonlinear Schrödinger equation recently demonstrated by Rogers and Schief , is applied to the investigation of vortex filaments in magnetohydrodynamics (MHD) dynamos. The use of Gauss-Mainard-Codazzi equations allows us to investigate in detail the influence of curvature and torsion of vortex filaments in the MHD dynamos. This application follows closely ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 2016
ISSN: 0028-0836,1476-4687
DOI: 10.1038/535500a