The Earth's core is primarily composed of iron and nickel, which are both metals that are capable of conducting heat. This means that as the Earth's core cools, it creates convection currents that cause the molten metal to move, resulting in the spinning motion.
The Earth's core spins at a rate of about 0.1 to 0.5 degrees per year. This may seem slow, but considering the size and density of the core, it is actually quite fast.
No, the Earth's core rotates in the opposite direction of the surface. This is due to the Coriolis effect, which causes objects to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This effect is caused by the rotation of the Earth.
If the Earth's core were to suddenly stop spinning, it would have major consequences for the planet. The Earth's magnetic field, which is generated by the spinning core, would disappear, leaving the planet vulnerable to harmful solar winds. It would also affect the Earth's rotation and could potentially lead to changes in the length of a day.
It is highly unlikely that the Earth's core will ever stop spinning completely. While it may slow down over time, it is constantly being heated from within by the decay of radioactive elements, which helps sustain the convection currents that drive the spinning motion. However, there is still much that scientists do not know about the Earth's core, so it is not impossible for unforeseen events to cause it to stop spinning.