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Silicon and carbon could explain Earth’s onion-like inner core

Deep beneath our feet, far beyond the reach of drills or submersibles, Earth hides a solid metal heart that behaves in ways geophysicists have struggled to explain. New experiments now suggest that a ...
EurekAlert!

An onion core: Researchers find hints of a multilayered centre of the Earth

An overview of the experimental setup at DESY in Hamburg reveals the vacuum chamber housing the high-temperature diamond anvil cell: The cell's orange colour comes from the light it emits at high ...
Nanowerk

Higher intensity x-ray beams don't always give stronger diffraction patterns

(Nanowerk News) Turning up the intensity of x-ray beams used to probe the atomic structures of materials can actually reduce the intensity of x-rays scattered from the material, a RIKEN-led team has ...
AOL

Silicon and carbon in iron may explain the onion-like layering of Earth’s inner core

Earth’s inner core has long puzzled scientists because seismic waves move through it unevenly. Compressional waves from earthquakes travel about 3 to 4 percent faster along the planet’s rotation axis ...