Do you the importance of electromagnetic spectrum.

I also listen many times. I know this term, it is totally belonging to science and frequency on space.

Yes, i know. Electromagnetic spectrum is a word related to telecommunication and internet. The range of frequencies are divided on this. There are many experiments are still running on this. You can make your mind more doubt free with this page, visit: htt://en.wikipedia.org/wiki/electromagnetic_spectrum. Electo means electronics that means it related to electricity. Electricity is the flow of electrons. And Magnetic i think you the properties of magnetics. These all(Electrons, magnetics, spectrum, communication, antennas etc.,) are related to Engineering and Technology.