Microwave ovens are not "focused at the frequency that makes water molecules vibrate". This is an urban myth. http://www.schoolphysics.co.uk/age16-19/Wave%20p

Microwave ovens are not "focused at the frequency that makes water molecules vibrate". This is an urban myth. http://www.schoolphysics.co.uk/age16-19/Wave%20properties/Wave%20properties/text/Microwave_ovens/index.html http://www.schoolphysics.co.uk/age16-19/Wave%20properties/Wa...