Imagine our lives without our smart gadgets? La vie without electromagnetics? In fact, go a step further, the very existence of life on earth depends on the Earth’s magnetic field. Without it, solar winds, which is a flow of charged particles from the sun to the earth, would strip the earth’s atmosphere and oceans. This happened on Mars, as revealed by the MAVEN mission.
Let’s back up a bit. Are you reading this from a smartphone, tablet, laptop, or computer? To scroll we touch the screen, pad, or use the mouse. Our inputs are converted into electronic signals – a form of electromagnetic (EM) waves, which are channeled to the processor; again as EM waves for interpretation. The screen gets updated, as confirmed by our EM-based optical sensory system; the eyes, and the nervous system.