Wavelength: Why is the Sky Blue

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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

Prism

Lightscatering

Rayleigh Scattering

Why is the Sky Blue?

Why is the Sunset Red?

History

Isaac Newton: prism

John William Strutt (Lord Rayleigh)

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

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