A couple of great electromagnetic energy powerplan I located:
Image by jeanbaptisteparis
A little emf robot that harvest energy from electromagnetic sources via mutual inductance, i.e. wireless energy... Sound is produced with a simple oscillator + piezo
Query by im: Electromagnetic Energy?
We know that the quantity of electromagnetic energy in a wave of frequency f is E=hf, exactly where h is Planck's continuous.
Now, typical light wave has significantly larger frequency than