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.
But how does this great invention work? Here, we explore the science behind one of the most revolutionary household appliances of the 20th century. Microwaves Are A Form Of Energy. Microwaves are electromagnetic waves that fly through space at the speed of light.