Thursday, June 7, 2012

Photons, Spectrums, Waves & The Sun !

 photons, which are a quantum of visible light or other form of electromagnetic radiation demonstrating both particle and wave properties. and we also learned about wave lengths ( an oscillation that travels through a medium by transferring energy from one particle or point to another without causing any permanent displacement of the medium). I found it interesting when we learned that the radio stations we listen to are wave lengths or sound waves. Frequency is the number of waves that pass by a certain mark in one second. It was interesting to find that the shorter the wave length, the greater the energy. The Electromagnetic spectrum which ranks radiation from lowest energy/longest wavelength to highest energy/shortest wavelength. The higher the energy, the stronger, and therefore more dangerous, the radiation. The scale consists of one side being radios, microwaves and infrared then visible, this is the only part of the electromagnetic spectrum we can see. We see the different wavelengths in this band of the spectrum as the colors of the rainbow, and for example the sun. Then on the other side we have things like ultraviolet UV rays, X-rays and gamma rays.
While doing some research I came across a really cool website called Dr. Arts guide to Science, and on the website under a tab entitled "cool stuff" there is a really interesting video on the Electromagnetic Spectrum. Although it says the video is a tool for teacher I still found it very interesting. Here is the link... Enjoy !
http://www.teachersdomain.org/6-8/sci/phys/mfw/emspectrum/index.html

I also found another website which really gives you a great understanding of  spectrum and also the Multispectral sun, the website is full with tons of amazing pictures and interesting information. The website is called Windows2universe.org (http://www.windows2universe.org/sun/spectrum/multispectral_sun_overview.html)
and here is an awsome picture i found that displays the differnt spectrals of the sun....


1 comment:

  1. Nice website post, with some good images. Look at the colors of the ultraviolet and their specific wavelengths- what do you notice?

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