How microwaves work?

­Not surprisingly, a m­icrowave oven uses microwaves to heat food. Microwaves are a type of wave that are sandwiched between radio waves and infrared radiation on the electromagnetic spectrum. In the case of microwave ovens, the commonly used wave frequency is roughly 2,450 megahertz (2.45 gigahertz). read more

­T­he microwave oven could be one of the great inventions of the 20th century -- hundreds of millions of homes worldwide have one. ­Just think about how many times you use a microwave every day. You're running late for work, so there's no time to fix breakfast at home. read more

You don't want microwaves leaking out of your oven, so if the door doesn't close properly (perhaps because it's gummed with spilled food), if the grid on the back of the glass has started rusting and peeling away, if the interlocks don't work, or the machine gives you any reason to think it might be leaking, get it repaired or replaced straight away. read more