The Earth's inner core is the Earth's innermost part and according to seismological studies, it is primarily a solid ball with a radius of about 1220 kilometers, or 760 miles (about 70% of the Moon 's radius).
AGA Stoves must be installed as they require a flue or a chimney. No extractor fan is needed, as cooking smells from the ovens go straight out that flue. As of 2010, you can purchase AGA Stoves that run on electricity, diesel, natural or propane gas; you can also get dual-fuel versions.
Extracting oil and natural gas from deposits deep underground isnât as simple as just drilling and completing a well. Any number of factors in the underground environment â including the porosity of the rock and the viscosity of the deposit -- can impede the free flow of product into the well.