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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 ...
For instance, the core may have shrunk as convection currents of hot liquid metallic hydrogen mixed with the molten core and carried its contents to higher levels in the planetary interior. Furthermore, there is no clear physical boundary between the hydrogen layers—with increasing depth the gas increases smoothly in temperature and density ...
The Molten-Salt Reactor Experiment (MSRE) was an experimental molten-salt reactor research reactor at the Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee. This technology was researched through the 1960s, the reactor was constructed by 1964, it went critical in 1965, and was operated until 1969. [ 1 ]
The Chernobyl corium is composed of the reactor uranium dioxide fuel, its zircaloy cladding, molten concrete, as well as other materials in and below the reactor, and decomposed and molten serpentinite packed around the reactor as its thermal insulation. Analysis has shown that the corium was heated to at most 2,255 °C (4,091 °F), and ...
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 iron catastrophe is a postulated major geological event early in the history of Earth, where heavy metals such as iron and nickel congregated in the core during a geologically brief period. The original accretion of the Earth 's material into a spherical mass is thought to have resulted in a relatively uniform composition.
New reactor specifications include: core graphite 3 m tall x 2.2 m wide, 700 °C operating temperature, 60 MW thermal output, and an experimental supercritical carbon dioxide-based closed-cycle gas turbine to convert the thermal output to 10 MW of electricity. [1] Construction is slated to start in 2025, and be completed by 2029.
A cutout of a stable salt reactor core. The stable salt reactor (SSR) is a nuclear reactor design under development by Moltex Energy Canada Inc. [1] and its subsidiary Moltex Energy USA LLC, based in Canada, the United States, and the United Kingdom, as well as MoltexFLEX Ltd., based in the United Kingdom.