Waves and How They Affect Life.

Waves effect our everyday life in many ways. Waves are very interesting ways to travel, and we don't mean surfing! Many things we use every day involve waves. Lights and sounds are examples of everyday uses that travel by wave. On the spectrum of light there are waves listed which are X-Rays, UV-Rays, and Infrared. Some of these are harmful to life, and some of these are helpful to life, where mostly they all serve both of these purposes. Another type of wave, though not on the spectrum because it is not light, are sound waves. Weather the wave is a sound wave or a light wave it consists of the basic similar parts. These waves all contain wavelength and frequency. A longer wavelength will mean a smaller energy level, as to where a shorter wave length makes the wave more compact and it will have a higher energy level. Some of the energy levels can become so high that they may become harmful. Other waves may have such a low energy that they are invisible or silent to humans without man-made devices. One small change in a wave can make a world of difference in its entire energy outcome. Waves are very interesting items that effect our lives both positively and negatively.

UV. Radiation in sunlight is divided up into three separate parts which are based on wavelengths, or more commonly read as energy. These parts are UV-A , UV-B., and UV-C.. UV-A. is 320-400 nanometers. In general shorter wavelengths are more harmful to living organisms such as people. 'A. can cause skin damage and may cause Melanomatous skin cancer. UV-B. is 280-320 nanometers. 'B. increases in the summer and is the most common cause of sun burn and most commonly skin cancer. UV-C. is the strongest of the three rays. 'C. is below 280 nanometers. 'C is the most dangerous form of UV. Rays, however, UV-C also is so powerful that it kills bacteria and viruses. Because of this, it is used for sterilizing surfaces. Much of 'B and most of 'C is absorbed by the earths atmosphere before it can reach the