Some would say gravity, but since the center of the core is effectively null gravity due to all of the mass of the earth located equidistant from it in all directions, then I think the pressure at the core is considerably lower than others estimate. probably the highest pressures would not be at the core, but at some point between the core and the mantle, some of this depends on a liquid core or a solid core model...how can a solid be pressurized internally if it is free-floating at the center of the mass of a planet? You know, they tell us that the Earth's core is molten iron and nickel and that it is a liquid core since the Earth has a strong magnetic field....but don't you remember learning that heat destroys magnetism? And look at the magnetic field lines in the arching solar flares from the sun itself! How can these be magnetic if heat destroys magnetism....why is the sun magnetic if it is made primarily of hydrogen and helium? One scientific question always seems to lead to others...seems like a fractal progression....
A high mass star's core collapses when nuclear fusion ceases and gravitational pressure overwhelms the radiation pressure supporting the core. This collapse leads to a rapid increase in temperature and pressure, triggering a supernova explosion.
The inner core of the Earth is solid because of high pressure caused by the weight of the layers above it, and the heat generated by radioactive decay. The outer core, however, is molten due to the high temperatures created by this heat.
The core of the sun is the most dense layer, with temperatures reaching about 15 million degrees Celsius and pressures as high as 250 billion times atmospheric pressure.
Two pressure systems that can cause strong winds are cyclones and anticyclones. Cyclones are characterized by low pressure at the center and strong winds circulating counterclockwise in the Northern Hemisphere. Anticyclones have high pressure at the center and strong winds that circulate clockwise in the Northern Hemisphere.
Thermonuclear reactions in the Sun take place only in its core because the core has high temperatures and pressures that are necessary for nuclear fusion to occur. The extreme conditions in the core provide the energy needed to overcome the repulsive forces between atomic nuclei and allow them to fuse together.
The amount of pressure overcomes the material's disposition to melting at high temperature. It solidifies.
Earths inner core is solid due to the extreme pressure from the weight of the layers above it, which exceeds the melting point of the iron and nickel it is composed of. This pressure prevents the core from melting despite its high temperature.
The convection cells radiate heat.
Winds are deflected to the right in the northern hemisphere because of the earths rotation.
The convection cells radiate heat.
The inner core is solid because of the immense pressure at that depth, which keeps the iron and nickel in a solid state despite the high temperatures. In the outer core, where pressure is slightly lower, the higher temperatures cause the iron and nickel to be in a liquid state.
No, high temperature in the Earth's inner core does not directly cause earthquakes. Earthquakes are primarily caused by the movement of tectonic plates, which generate stress and pressure along fault lines. The heat in the inner core is a result of radioactive decay and pressure from the overlying layers, rather than a direct cause of seismic activity.
The Earth's inner core remains solid due to the immense pressure that exists at the center of the planet. This pressure is so high that it prevents the iron and nickel in the inner core from melting, despite the high temperatures. Additionally, the inner core's solid state is maintained by the slow cooling and freezing process that occurs as heat escapes from the core to the outer layers of the Earth.
uneven heating by the sun causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.
the 2 main variables which decide whether an element or compound is a solid, liquid, or gas, are temperature and pressure.Iron melts at 1538 degrees only when it is pure (which the core is not) and under atmospheric pressure. The iron in the earths inner core is under pressure equivalent to many thousands (if not millions) times that of atmospheric pressure, so it exists as a solid.
The inner core of Earth is solid due to the immense pressure from the layers above it. This pressure prevents the iron and nickel in the inner core from melting despite the high temperatures. Additionally, the solidification process helps to release some of the heat generated by radioactive decay in the core.
The rock found in Earth's inner core is primarily composed of iron and nickel. This molten rock is in a state of extreme pressure and temperature, creating a solid inner core due to the immense pressure.