how hot is the center of the earth where all that heat comes from?
EXPERIMENT TWO — DIGGING BEYOND THE FACTS Run out to your backyard where you just took the temperature of the earth down about one foot or so. Now continue digging down about 10 miles. This will have to be a thought experiment, since nobody can actually do that. If you dig down into a coal or diamond mine about 1 mile, the temperature goes up about 100F degrees. If you dig down 2 miles, the temperature is already about 200F degrees. It takes special air conditioners and water cooling of the rocks to dig mines that deep. Keep digging down to 10 miles and the temperature is a whopping 1,000F degrees. That high heat is the same temperature of the electric heating element on your stove turned up full, or the temperature of the heating element in your toaster. It is a bright yellow heat. At that temperature the metal in your old digging spoon or garden trowel starts to melt. Of course, you would have “melted” and ceased to exist long before you got to 10 miles, so this obviously is only a
