View source for Wavelength: Why is the Sky Blue

by Irene Hammel 

==Visible Light Spectrum==

[[File:visible light spectrum.png]]

Electromagnetic Radiation is light, but only a small part is visible to the human eye.  This portion is known as the visible light spectrum, the rest os the spectrum is either too large or too small for our eyes to receive.

===Wavelengths===
[[File:pathindependence.png]]

===Prism===
[[File:pathindependence.png]]

==Lightscatering==
===Rayleigh Scattering===

=Why is the Sky Blue?=
[[File:pathindependence.png]]

=Why is the Sunset Red?=
[[File:pathindependence.png]]

=History=

Isaac Newton: prism 

John William Strutt (Lord Rayleigh)

[[File:pathindependence.png]]

= See also =

===Further reading===

Read more about:

- Lord Rayleigh (John Strutt): http://micro.magnet.fsu.edu/optics/timeline/people/rayleigh.html

- Electromagnetic and Visible Spectra: http://www.physicsclassroom.com/class/light/Lesson-2/The-Electromagnetic-and-Visible-Spectra

- Dispersion of Light by Prisms: http://www.physicsclassroom.com/class/refrn/Lesson-4/Dispersion-of-Light-by-Prisms

===External links===

http://science.hq.nasa.gov/kids/imagers/ems/visible.html

http://www.sciencekids.co.nz/sciencefacts/light.html

==References==

http://www.sciencemadesimple.com/space_black_sunset_red.html

http://missionscience.nasa.gov/ems/09_visiblelight.html

[[Category:Radiation]]