Celebrity Biographies. Victoria Osteen has been married to Joel Osteen since April 4, 1987. They have been married for 30 years. Victoria Osteen.
Earth's Magnetic Field. The existence of Earth's magnetic field itself is evidence that the outer core is liquid. The outer core is believed to contain a system of convection currents that create a dynamo effect, and generates this field.
The reason for that density is that it contains a higher proportion of metals (iron-nickel alloy) than rock. The Earth's core consists of two parts. One is the 2,200 km thick liquid outer core, the other a 1,250 km thick solid inner core. The liquid outer core provides the Earth's magnetic field as the planet rotates.