Cooking with Radiation Radiation - According to radiation is "the energy radiated or transmitted in the form of rays, waves, or particles." An example of cooking with radiation is using a microwave. According to Yummy Physics, "the microwave oven cooks food by using high frequency electromagnetic waves called microwaves at 2.45 GHz or 2,450,000,000 cycles per second (see spectrum below). "Microwaves can be found in between radio waves and light waves, with wavelengths of about 12.1 centimeters.", according to Yummy Physics. http://hyperphysics.phy-astr.gsu.edu/hbase/ems1.html How do microwaves cook food? Because microwaves are absorbed by fats, water, and sugars, it allows those molecules to produce heat. They produce heat because the microwaves cause the molecules to vibrate and twist which makes them hub together. This movement allows the molecules to absorb microwave energy and convert it into thermal energy (which is made when heat is produced). http://products.geappliances.com/ProdContent/Dispatcher