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Earth cutaway from core to exosphere. Partially to scale. Travelling to the Earth's center is a popular theme in science fiction. Some subterranean fiction involves traveling to the Earth's center and finding either a hollow Earth or Earth's molten core. Planetary scientist David J. Stevenson suggested sending a probe to the core as a thought ...
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 20% of Earth's radius or 70% of the Moon's radius. [1] [2] There are no samples of the core accessible for direct measurement, as there are for Earth's mantle. [3]
The temperature increases towards the center of the Earth, and the higher temperature of the fluid lower down makes it buoyant. This buoyancy is enhanced by chemical separation: As the core cools, some of the molten iron solidifies and is plated to the inner core. In the process, lighter elements are left behind in the fluid, making it lighter.
The Generalplan Ost (German pronunciation: [ɡenəˈʁaːlˌplaːn ˈɔst]; English: Master Plan for the East), abbreviated GPO, was Nazi Germany's plan for the settlement and "Germanization" of captured territory in Eastern Europe, involving the genocide, extermination and large-scale ethnic cleansing of Slavs, Eastern European Jews, and other indigenous peoples of Eastern Europe categorized ...
In 1862, the physicist William Thomson, 1st Baron Kelvin published calculations that fixed the age of Earth at between 20 million and 400 million years. [19] [20] He assumed that Earth had formed as a completely molten object, and determined the amount of time it would take for the near-surface temperature gradient to decrease to its present value.
Septerra Core: Legacy of the Creator is a role-playing video game developed by Valkyrie Studios and published by Monolith Productions. It was originally released in 1999 for Windows ; since then, it has been re-released via GOG.com for Windows in 2009, for OS X in 2013, and for Linux in 2017.
Vostok Research Station is around 1,301 kilometres (808 mi) from the Geographic South Pole, at the middle of the East Antarctic Ice Sheet.. Vostok is located near the southern pole of inaccessibility and the south geomagnetic pole, making it one of the optimal places to observe changes in the Earth's magnetosphere.
For its entire history, the GPO has occupied the corner of North Capitol Street NW and H Street NW in the District of Columbia. The large red brick building that houses the GPO was erected in 1903 and is unusual in being one of the few large, red brick government structures in a city where most government buildings are mostly marble and granite.