Enter the "pow dered bed," an experimental stovetop that's been designed by Whirlpool.
Combine an understanding of cooking and physics, and you get the nonstick pan and the induction stovetop.
Set the pan on the stovetop and heat on low. Stir frequently until the wax is melts.
Figure 11-11: A stovetop with poor physical mapping of controls. Does the knob on the far-left control the left-front or left-rear burner?
In that year, Charles Goodyear accidentally dropped rubber and sulfur on a hot stovetop, causing it to char like leather yet remain plastic and elastic.
Figure 11-12: Clear spatial mapping. On this stovetop, it is clear which knob maps to which burner because the spatial arrangement of knobs clearly associates each knob with a burner.
