1. Human Organism and the Perception of

11. RADIO WAVES RADIO, TELEVISION, RADAR, MAGNETIC RESONANCE IMAGING (MRI), CELL PHONES, MICROWAVES INFRARED INFRARED THERMOLOGY, NIGHT VISION GOGGLES, OBSERVATION SATELLITES, REMOTE CONTROLS, OPTICAL SCANNERS, OPTICAL COMPUTER MOUSE, WIRELESS KEYBOARDS VISIBLE LIGHT LIGHTING, LASERS, PHOTOGRAPHY, CINEMA, SCREENS, MICROSCOPES, TELESCOPES ULTRAVIOLETTREATMENT OF CERTAIN AILMENTS (SKIN), STERILIZATION, TANNING BEDS X-RAYSRADIOGRAPHY, BAGGAGE INSPECTION, STUDY OF CRYSTALLINE SUBSTANCES GAMMA RAYSCANCER TREATMENT, FOOD PRESERVATION

12. Sound Waves

16. Light Waves

18.  Reflection is the rebounding of light that occurs when a light ray hits a different medium and “bounces back” to the medium from which it came.