Could the Earth revolve without heat in the inner core?

Spinning within Earth's molten core is a mass of pure crystallised iron that is nearly the size of the moon. At Earth's core the pressure is 3.5 million times higher than surface pressure and temperatures are some 6000°C (10800°F) higher. read more

As the outer core is fluid and presumably convecting (and with an additional correction for the presence of impurities in the outer core), we can extrapolate this range of temperatures to a temperature at the base of Earth's mantle (the top of the outer core) of roughly 3,500 to 5,500 kelvins (5,800 to 9,400 degrees F) at the base of the earth's mantle. read more

The intense heat of the inner core is keeping the outer core a dense liquid that contains convection currents due to the heat, and they are directed by the earth's spin. The inner core is also believed to be moving at a different rate than the outer core. read more