The big debate

            Light, the biggest mystery in modern science. Apart from the debate on weather light is a wave or a particle, light has many different forms, one of them being infrared light has a 10 to the 12th power frequency. So it is not the on the weaker side of the electromagnetic spectrum. The human body can't feel infrared waves. The most common fact about infrared light is that it can "see" heat. It is used a lot after construction to look for cracks in the ceiling or the walls.