electromagnetic radiation

At even longer wavelengths, electromagnetic radiation can interact with electronic systems and can be used to disable computers and control systems.

Unfortunately, this type of electromagnetic radiation does not leave a telltale trace like sunburn, which makes it difficult to be certain of the explanation.

Unlike traditional telescopes, which use lenses or mirrors to focus visible light, this contraption used metal and circuitry to collect interstellar radio waves, low frequency ripples of electromagnetic radiation.

The light you can see from a candle or light bulb is electromagnetic radiation.

You have no way to touch or feel or even suspect the existence of electromagnetic radiation, but that is where the voices are coming from.

What it does say is that our brains are sensitive to this electromagnetic radiation, which is fascinating.

Does this mean that the mental disturbances arise from some form of electromagnetic radiation?

That will stop most electromagnetic radiation, but not this stuff!