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{{short description|Predicts density vs depth in Earth}} ...n |title = Preliminary reference Earth model |journal = [[Physics of the Earth and Planetary Interiors]] |year = 1981 |volume = 25 |issue = 4 |pages = 2 ...

|Section4 = {{Chembox Structure |CrystalStruct = [[Fluorite structure]] ...

...slowness of the medium ( in seismology, it refers to different layers of [[Earth]] exhibiting different [[Density|densities]]) ...by the ray into N segments numbered i = 1, 2 .. N the total travel time of the [[wave]] is ...

{{Short description|Short-term changes in the length of the day}} ...the ecliptic and the eccentricity of Earth's orbit around the Sun|Equation of time}} ...

{{short description|Standard model of the structure of Earth's magnetic field}} ...tle=International Geomagnetic Reference Field: the 12th generation|journal=Earth, Planets and Space|date=27 May 2015|volume=67|issue=79|doi=10.1186/s40623-0 ...

|Section3 = {{Chembox Structure ...he Physics and Chemistry of Rare Earths Volume 5 | chapter=Chapter 45 Rare earth fluorides | publisher=Elsevier | year=1982 | issn=0168-1273 | doi=10.1016/s ...

{{short description|Short-term changes in the Earth's magnetic field}} ...of Earth|Earth's interior]], while more rapid changes mostly originate in the [[ionosphere]] or [[magnetosphere]].<ref name=MerrillCh2>{{harvnb|Merrill|M ...

...nsible for heat loss, to material properties that determine the efficiency of heat transport. ...ating the temperature along an adiabat from the inner core boundary, where the iron solidus is somewhat constrained. ...

...e [[rare-earth element]]s. Orthoferrites have an [[orthorhombic]] crystal structure with a space group Pbnm and most are weakly [[ferromagnetic]].<ref>[http:// ...re-earth ion subsystem acquires magnetization m due to an interaction with the iron subsystem. ...

{{short description|Ratio of a slightly volatile element, potassium (K), to a highly refractory element, ...atio helps explain the evolution of the planetary system and the origin of Earth's moon. ...

...Level representing a mechanical difference between layers in Earth's inner structure}} ...upper solid mantle ([[lithospheric mantle]]). The green dashed line marks the LAB.]] ...

| Type = [[Outline of radio science|Radio science]]/[[Transponder]] | Function = Monitor the rotation and orientation of Mars ...

...eflected, or orbit it, directing its exhaust perpendicular to the plane of the orbit. ...siderable effort might be necessary to halt its spin or rotation, by using the tractor method these considerations are irrelevant. ...

...tent/26/2/57.short|title=Implicit integration for CSMP III and the problem of stiffness|publisher=Advanced Applications Group IBM (UK) February 1976|acce ...to global warming. CSMP and its various versions were used extensively in the past when this software was first developed.<ref name="old">{{Cite web ...

...te crystals are grown from solution by solvent evaporation; they belong to the triclinic space group P1. ...Nd:YAG laser]] (wavelength 1064&nbsp;nm), and SHG efficiency equal to that of KDP has been obtained. ...

...ts play a pivotal role in shaping the structure, composition, and dynamics of planets and moons within a stellar system. ...k R. |date=July 1978 |title=Planetesimals to planets: Numerical simulation of collisional evolution |url=https://linkinghub.elsevier.com/retrieve/pii/001 ...

{{Short description|Pedagogical illustration of how the greenhouse effect causes global warming}} ...meant for a pedagogical purpose, showing the main physical determinants of the effect. ...

{{Short description|A measure for the size of planets and other Solar System objects}} ......528A..41L }}</ref> In the case of a sphere, the mean radius is equal to the radius. ...

....A. Potemra, J. Geophys. Res.,'''83''', 599, 1978</ref> A number of models of that field exists.<ref>McIlwain, C.E., Adv. Space Sci., '''6''', 187, 1986< A widely used model is the '''Volland-Stern model''' <ref name="Volland1">Volland, H., J. Geophy. Res ...

...|date=2010-06-10 |author-link=Ugo Bardi|language=it |trans-title=Berzano - The KiteGen is under construction |accessdate=2011-03-15 |archive-date=2016-05- ...tesurfing|kite surfers]], Ippolito noticed the large amount of energy that the kite could collect and thought that a similar system could produce [[electr ...