I don’t think I’d describe it as “another realm”. Infrared is the light frequency most objects in this realm radiate across another spectrum of wavelengths… the infrared radiation.
Our sense of sight… our eyes only “see” a certain spectrum of light frequencies… the visible spectrum. What our eyes don’t see, is the infrared spectrum.
Your next camera you may purchase, just like getting a digital camera, may soon be the infrared camera!
It can allow you to see through some objects, like this video demonstrates! Your neighbor may have one, that should make you think twice!
This video gives a very good explanation of “More than your eyes can see”.
http://www.youtube.com/watch?v=2--0q...eature=related
