Search results
Results from the WOW.Com Content Network
In 2001, S. Labrosse and others, assuming that there were no radioactive elements in the core, gave an estimate of 1±0.5 billion years for the age of the inner core — considerably less than the estimated age of the Earth and of its liquid core (about 4.5 billion years) [58] In 2003, the same group concluded that, if the core contained a ...
It also predicted that, if the viscosity were too low (less than 3 x 10 16 Pa·s), the inner core would not be able to maintain its seismic anisotropy. [27] However, the source of the anisotropy is still not well understood. A model of the viscosity of the inner core based on Earth's nutations constrains the viscosity to 2–7 × 10 14 Pa·s ...
It is surrounded by the inner core, and is composed of solid iron in a different, but unknown structure from the inner core. The existence of an inner core was proposed by Adam Dziewonski and Miaki Ishii to explain the discrepancies in certain fits to travel-time wave models of the inner core. [1] It is contested whether the innermost inner ...
The findings open up new ways to investigate the inner core, according to lead author Thanh-Son Phạm. ANU also believes the innermost inner core hints at a major event in Earth's past that had a ...
All Xbox Live enabled games on Windows 10 are made available on the Windows Store. In order to be released on Windows 10 as an Xbox Live enabled game, the developer needs to be a member of ID@Xbox . Xbox Live enabled titles will be identifiable in the marketplace by a green banner running across the top of the game page icon that reads "Xbox Live".
In the Pressure and Gravity section, change The acceleration of gravity at the surface of the inner core can be computed to be 4.3 m/s2;[22] which is less than half the value at the surface of the Earth (9.8 m/s2). to The acceleration of gravity at the surface of the inner core can be computed to be 0.43 m/s2;[22] which is less than 1/20 the ...
Earth's inner core is the innermost geologic layer of the planet Earth. It is primarily a solid ball with a radius of about 1,220 km (760 mi), which is about 19% of Earth's radius [0.7% of volume] or 70% of the Moon's radius. [32] [33] The inner core was discovered in 1936 by Inge Lehmann and is generally composed primarily of iron and some ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!