https://blogfreely.net/kettled....eath51/five-built-in
https://lykkegaard-smart-2.hub....stack.net/7-things-y
How is a Microwave Built? Microwave ovens have taken household convenience to a completely new level. They can be placed in cabinets for wall use or on top of kitchen islands. They are made from a variety materials. In 1940 the cavity magnetron tube emitting microwaves was developed at Birmingham University in England. Percy Spencer discovered that this device can heat food afte