Sentences with phrase «churning liquid outer core»
The Outer Core Made of molten iron, nickel, and other ingredients yet to be determined, the churning liquid outer core may have the viscosity of water, streaming at possibly one to several miles per week with the turbulence of a gargantuan, slow - moving washing machine.
http://discovermagazine.com/ Not exact matches
Scientists had recently discovered that every 200,000 years, on average, churning in the hot liquid metal of Earth's outer core causes the planet's whole magnetic field to flip.
The discovery is vexing: If liquid iron conducts heat into the mantle at such a high rate, there wouldn't be enough heat left in the outer core to churn its ocean of liquid iron.