UV light is part of the electromagnetic spectrum and can be found in sunlight. UV light cannot be detected via touch nor sight. The human body, however, responds to it by turning the skin to a darker shade. This happens as the body is trying to prevent the UV light from reaching the tissues of the skin. This is an important phenomenon as UV light has the potential to cause normal cells to become cancerous.
- ↑ BBC - GSCE Bitesize: Radio Waves - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/radiation/the_electromagnetic_spectrumrev1.shtml