Abstract: The globe is rotationally molded of iron particles and a plastisol of polyvinyl chloride and has embossed therein, from the mold, lines of longitude and latitude. Two or more layers of magnetized puzzle pieces are formed by printing their indicia on flat, soft, magnetized thermo plastic sheets and then die cut. The indicia is printed such that, when necessary, successive layers of puzzle pieces have their magnets aligned so that specific pieces adhere to specific places on pieces of adjacent layers. When necessary, the pieces are heat formed to conform to the globe shape. Preferably, the first layer contains continental and longitude and latitude information; the second layer, geologic features; and the third layer, political information. The globe stand has a recess therein, the bottom of which is of the same curvature as the globe and may incorporate or have sprayed on iron containing material so that the puzzle pieces may be conveniently stored there when not applied to the globe.

Abstract: Disclosed is a method and apparatus for the in situ removal of contaminants from contaminated soil wherein exhaust gas from an internal combustion engine is injected at an elevated temperature into contaminated soil creating a sweep gas driving volatile organic chemicals out of the in situ soil. The mechanical energy from the internal combustion engine is utilized in separating the volatile organic chemicals from the sweep gas and/or increasing the flow rate of the sweep gas through the contaminated soil by either increasing the injection pressure and/or reducing the pressure on the recovery well.