The limits of human perception

Via Abstruse Goose (heh, clever name), this image pretty well proves exactly how narrow a range of the EM spectrum we humans can readily detect with our natural senses.

Graphical illustration of the wavelengths of the electromagnetic spectrum that we humans can hear and see, as a cross-section graph

There’s a hell of a lot going on in this universe. The even more interesting thing is, I’m fairly certain all of that black area can be detected and measured via modern scientific instruments. Really puts the lie to the people who claim that we are risking grievous bodily harm by using wireless technology, when we are awash in far higher power output electromagnetic radiation just in the form of visible light.