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Today, manufacturers are introducing new electronic systems into the refrigerator. | Today, manufacturers are introducing new electronic systems into the refrigerator. | ||
'''Auto Defrost '''. | |||
When warm air comes into contact with a cold surface it will condense and stick to the surface- much like a window pane in winter. In freezing temperatures the frost will accumulate and turn into a thick layer of ice. | |||
Inside the freezer walls, manufacturers install a heating coil –like the coils found in a toaster oven- that burns red-hot and melts any frost buildup. (The small amount of excess water is drained into a tray underneath the refrigerator where it evaporates). | Inside the freezer walls, manufacturers install a heating coil –like the coils found in a toaster oven- that burns red-hot and melts any frost buildup. (The small amount of excess water is drained into a tray underneath the refrigerator where it evaporates). | ||
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'''Electronics, Microprocessors and Messaging''' | '''Electronics, Microprocessors and Messaging''' | ||
An electric circuit simply powers machines with electricity. However, an electronic circuit can interpret a signal or an instruction, and perform a task to suit the circumstance. | An electric circuit simply powers machines with electricity. However, an electronic circuit can interpret a signal or an instruction, and perform a task to suit the circumstance. |