Good information about electromagnetic spectrum, cheap instruments for measuring electromagnetic waves, etc. Phones, computer, are bad for radiation?
https://steemit.com/science/@jrmagnetics/emf-and-mind-control
More References:
[1] https://en.wikipedia.org/wiki/Electromagnetic_compatibility
[2] https://en.wikipedia.org/wiki/Electromagnetic_interference
[3] https://en.wikipedia.org/wiki/Electromagnetic_field
[4] https://en.wikipedia.org/wiki/Electronic_harassment
[5] https://en.wikipedia.org/wiki/Fourier_transform
Tags: electromagnetic waves, Light