R.F. (Radio Frequency)
Similar in technique to microwave heating, RF
heating applies a very high frequency radio wave to the material,
this causes the molecules to vibrate and crash into each other and rub
against each other at such a fast rate,
that heat is generated.
No work has been carried out with theis technique as yet, as early
research led to simpler similar techniques
using Induction Heating.
Another impediment to this testing is the extremely high cost (by
comparison) of actual RF-generating transistors.