Click the applet window to add heat. Hold down the mouse button, or drag your mouse. Release the mouse button will stop heating. If you want to cool it down, press the SHIFT key while doing the above. This model is limited to thermal conduction only. See a convection example.

Select Heating Thermometer       Graph Isotherm

Conductivity of rectangle

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Developed by Charles Xie. © 2010- The Concord Consortium.