Waves traveling through the inner core go faster than those through the outer core.
The inner core.
Scientists believe the inner core is solid because of its seismic properties. S-waves cannot travel through liquid, yet they can travel through the outer core but are noticeably dampened in the inner core, suggesting it is solid. Additionally, studies on iron under high pressure and temperature conditions support the idea of a solid inner core.
Scientists believe Earth's inner core is solid because of seismic waves from earthquakes that travel through the core, the behavior of seismic waves, and the way in which they are reflected or refracted. This information suggests that the inner core behaves more like a solid than a liquid. Additionally, studies of the Earth's magnetic field and the behavior of seismic shear waves also support the idea of a solid inner core.
a solid ball of iron
the inner core
Scientists believe that the Earth's inner core is most likely made of solid metals, primarily iron and nickel. This is supported by seismic wave data and studies on the Earth's magnetic field.
Yes the refraction path of the p-wave tells us that the earths inner core is solid.
The immense pressure from the layers outside of the inner core.
Scientists use the difference in density between the inner and outer core as evidence that the inner core is solid. This was proven using seismic waves traveling through the earth.
It is said that the crust and the inner core are to be solid.
The solid inner and liquid outer core.
The mantle! I remember learning this in geography :)