Invisible Light

Introduction



In the 1850s James Clerks Maxwell concluded from his work that light is electromagnetic energy. A prism refracts the difference colors or wavelengths in different amounts. Since Maxwell's work, scientist have formed another idea of how light travels. The travel in wave o photons. Based on the work of Heirinchi Hertz from the 1880's, we now know that there are wavelengths of light that we do not see.
Electromagnetic spectrum are wavelengths of light, the ones we see and the ones we can not see.



Contents

Wavelengths of light show here are longer than Red. They are invisible but have important properties and uses.

1. Radio Waves: are the longest waves of the electromagnetic spectrum.

2. Radar: I now that radar works in a similar way.

3. Microwaves: are the shortwave radio waves.

4. Infrared light: is a visible red waves in the spectrum.

5. Ultraviolet Light: Is made up of waves jus shorter than visible violet light on the spectrum.

6. X rays and Gamma rays: have great penetrating power.

Conclusion…


There are invisible light, that exist and have important properties and uses, for example Radio Waves permit communication through the radio, radar is used in a submarine or airplane, microwaves help to heat foods faster, infrared light is used en a special photographic film and electronic sensor, ultraviolet light is used in a hospital to kill harmful bacteria in equipment used in operating rooms, X Ray gives a clearly picture of our bones and help to know damage.



Other devices as lasers help in many form, in a heavy duty industry, medicine, entertainment (CD player)