* LIGHT WAVES
** OBJECITVES
** CONTENT
The nature of light is  that it has two sources, artificial
and natural, examples of natural light emitters are the sun
and some  insects, for  the artificial lights,  led lights,
candles, flashlights, etc.

The speed of light is 300 m/s, light is an electronmagnetic
wave.

There  are alot  of parts  in the  EMR, they  are mentioned
below, though they seem  different, they are all travelling
on the same speed

*** LOW ENERGY
1. Radio Waves
   These  usually   used  for   Radios,  TV,   GPS  (Global
   Positioning System), MRI (Magnetic Resonnance imaging)
   
2. Microwaves
   Used for  heating, RADAR  (Radio Detection  and Ranging)
   communication and TELE communications
   
3. Infrared
   Communication, Health Care,  Detect and Study Pollution,
   Infrared   sensors  used   to  study   pollution,  fire,
   deforestation, volcanoes, auroras, snow, etc.
   
4. Visible
   In colors,  photosynthesis, Lasers  (Light Amplification
   by stimullated Emission of Radiation)), Endoscopy

*** HIGH ENERGY
5. UV
   Detect  Forgery,  Sterilize medical  equipment,  enables
   your body to  produce vitamin D, and  treat jaundice for
   newborns
   
   
6. X-Rays
   Used  to detect  dangerous  thiings, radiation  therapy,
   screening in ports, industrial photography.
   
7. Gamma
   Used for Nuclear

*** THEORIES
 Christian Huygens said that light behaves like a wave

 James Clek  Maxwell said that  light is the small  part of
 the electromagnetic spectrum which affects our vision

 Max Planck and Albert Einstein said that light is radiated
 in discrete  packets or bundles of  energy called photons,
 which  also exhibit  wave  characteristics  (this is  also
 known as the Quantum Theory)