https://squareblogs.net/tonglu....e22/10-best-mobile-a
https://posteezy.com/15-best-p....interest-boards-all-
https://notes.io/w6zd3
How is a Microwave Built? Microwave ovens have brought household convenience to a completely new level. They are designed to fit inside cabinets on the walls or over kitchen islands. They are made from a variety of materials. In 1940 the cavity magnetron device emitting microwaves was invented at Birmingham University in England. Percy Spencer discovered that this device can cook food after wat