MICROWAVE OVEN

SPENCER USHERS IN THE AGE OF NEAR INSTANTANEOUS COOKING

                          

         The microwave oven is an invention that arrived almost entirely by ancient. Its inventor, Percy Spencer (1894-1970), was an electronic whizz, working on designing radar equipment. He paused next to a “magnetron”, one of the Power Component of the machinery, and was amazed to discover that the chocolate bar in his packet and melted

it use radio waves at a specifically set frequency to agitate water molecules in food. As these water molecules get  agitated they begin to vibrate at the atomic level and generate heat. This heat produced is cooks food in the oven.

Understandably curious, he tried placing other object near magnetron. Some unpopped popcorn popped successfully (with Spencer standing further away, so as not to start cooking himself), and the next morning an egg was cooked, demonstrating for the first time that eggs in their Shells explode if cooked in microwave oven.

  

         Spencer realized the potential of the discovery and set about designing a more efficient food cooking device .he field for a patent in 1945, and by late 1946 a prototype device was being tested in Boston, Massachusetts, restaurant, and soon commercial models become available. these early models were not received well by consumer ,possibly they were over 6 feet (1.8 m)tall , cost $ 5,000, and required special plumbing to cool magnetron apparatus .gradually ,however ,unit become more practical and affordable ,and become safe and reliable enough to be used by the average consumer .by 1975 , microwave sale were exceeding those of gas cooker.

            

        The microwave oven thus have its shortcoming, however .meat does not brown on the outside, and the quick cooking time means that food can end up cooked unevenly .despite these issue , many Peoples regard their microwave as indispensable .

A 1968 commercial microwave oven model HN 1102, by Philips, Eindhoven, Netherlands.