verb. The definition of a chronicle is a record of things that have happened in the order which they happened. A US history book is an example of a chronicle. Chronicle means to gather facts and information about events which have happened.
A microwave oven is a type of oven that uses microwaves to heat up food. Microwaves are a type of electromagnetic wave that is sandwiched between radio wave and infrared radiation on the electromagnetic spectrum and their frequencies range between 300 MHz (0.3 GHz) and 300 GHz.
Microwave ovens work with powerful high-frequency radiation (microwave radiation). This radiation is absorbed by food and transformed into heat. Food heated by microwave ovens does not actually contain any microwaves and therefore does not give off radiation.The metal case of a microwave oven and a metal-wire screen in its door ensure that most of the radiation stays inside the appliance. A small proportion leaks out.ood heated by microwave ovens does not actually contain any microwaves and therefore does not give off radiation. The metal case of a microwave oven and a metal-wire screen in its door ensure that most of the radiation stays inside the appliance. A small proportion leaks out.