I am a non-physics person trying to wrap my head around some EM radiation facts. Please help me with this.
I have read about Dielectric Heating on Wikipedia. And watched quite a few videos on internet on how Microwave oven works. It all boils down to the following facts. Please correct me if I am wrong on any of them.
The Microwaves are absorbed by Water molecule and the Negative charged Hydrogen atoms want to align with negative radiation and Positive Oxygen atom wants to face positive radiation which makes the water molecule dance.
Microwave oven Magnetron changes the negative-positive polarity in charge as often as 2.4 billion times in a second which makes Water molecules dance really really fast.
This dance makes the water molecules heated.
Now coming to my question, I learned that Cell Phones use UHF frequencies such as 800 MHz and 400 MHz.
Does that mean water molecules in our body are dancing at the rate of 800/400 steps per seconds ? Why don't they heat up then ?