Accordingly, here we reexamine the spin-axis evolution of a Moonless Earth within the context of a simplified perturbative framework. We present analytical estimates of the characteristic Lyapunov coefficient as well as the chaotic diffusion rate and demonstrate that even in absence of the Moon, the...
Recently continental paleomagnetic data rotated into a hotspot reference frame have been used to suggest the Earth rotated 18° with respect to the spin axis at 110 Ma. We test this true polar wander (TPW) hypothesis using paleomagnetic data from widespread granitic rocks of cratonal North Ameri...
rotate指物体在自身的轴上或围绕自身的中心转动，如车轮、地球的转动。例句：The Earthrotateson its ax...
to revolve or rotate rapidly, as the earth or a top. Synonyms:gyrate to produce a thread from the body, as spiders or silkworms. to produce yarn or thread by spinning. to move, go, run, ride, or travel rapidly. to have a sensation of whirling; reel: ...
Earth and Planetary Sciences Physics and AstronomyDiscover other topics On this page Definition Chapters and Articles Related Terms Recommended Publications Third Party Recommendations Chapters and Articles You might find these chapters and articles relevant to this topic. COUPLING BETWEEN PROTONS AND OTHER ...
The earth rotates on its axis. 地球绕地轴自转。 Stay well away from the helicopter when its blades start to rotate.直升机的螺旋桨开始转动时,尽量离远点儿。 It is best to allow the rotor to rotate freely. 最好让转子自由旋转。 Each joint can rotate through an angle of 90. 每个联轴节都能...
revolve, rotate, go around - turn on or around an axis or a center; "The Earth revolves around the Sun"; "The lamb roast rotates on a spit over the fire" whirligig - whirl or spin like a whirligig 2. spin - stream in jets, of liquids; "The creek spun its course through the woo...
Satellite Laser Ranging (SLR) measurements contain information about the spin parameters of the fully passive, geodetic satellites. In this paper we spectrally analyze the SLR data of 5 geodetic satellites placed on the Low Earth Orbits: GFZ-1, WESTPAC, Larets, Star-lette, Stella, and ...
The invention provides a novel, low-cost, spin-stabilized lander architecture capable (with appropriate system scaling tailored to the attributes of the target) of performing a soft- landing on a solar-system body such as Earth's Moon, Mars, Venus, the moons of Mars, Jupiter, Saturn, Uranus...
The stability of the pyrochlore structure and the magnetic rare-earth atom (Dy, Ho, etc.) plays a very important role in determining the low-temperature magnetic spin ice ground state of these systems. In this light, we have studied the structural and magnetic phase diagram of Dy2−xLaxZr...