I want to start by saying that I understand some of the stuff and I guess this should be more of an explanation like I’m 10 or 15. I know polar molecules and heat result from kinetic energy among molecules in rotation, vibration, and translation so I kind of get that dielectric heating works by moving the molecules around. I also understand light waves and frequency and some basic circuitry. The thing that I struggle to understand is the choice in frequency for microwaves. What makes other nonionizing frequencies not as good as microwaves and how is it able to release so much energy/food absorbs so much energy with low-frequency waves.
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Water molecules vibrate at a frequency that is resonant at microwave frequencies. I’m not sure if they vibrate at microwaves’ fundamental frequency ot a harmonic. But the point is that molecules react more to microwaves because the energy transfer between the radio waves and water molecules is more efficient at resonance.
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