Permissions

1. Spectrum image below all pages in the spectrum section (/C002213/en/sp-power.shtml, /C002213/en/sp-radio.shtml, /C002213/en/sp-micro.shtml, /C002213/en/sp-infra.shtml, /C002213/en/sp-visible.shtml, /C002213/en/sp-ultra.shtml, /C002213/en/sp-xray.shtml and /C002213/en/sp-gamma.shtml), edited from http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html, as stated in http://www.lbl.gov/Disclaimers.html the items on that domain are freely usable when used for educational purposes.
2. Two powerline pictures on /C002213/en/sp-power.shtml, and also the picture on /C002213/en/sp-visible.shtml (not the spectrum) are from the cd-rom Corel PrintHouse, in the photo/sunsets directory.
3. The image of the on /C002213/en/sp-ultra.shtml was taken from http://sohowww.nascom.nasa.gov/gallery/EIT/, and can be used freely, as stated on http://sohowww.nascom.nasa.gov/gallery/bestofsoho/copyright.html
4. The picture on the /C002213/en/sp-radio.shtml, and the three pictures on /C002213/en/sp-micro.shtml came from a royalty free picture CD.
5. The pictures on the /C002213/en/sp-xray.sthml, were scanned from the Dutch book "Röntgenstraling" by W. Peeters, with his permission.
6. The image on /C002213/br-interf.shtml, was scanned from the Dutch book "Lasers - Licht van atomen in het gareel" by James P. Harbison and Robert E. Nahory, with permission from E. Nahory.
7. All images from /C002213/nt-sun.shtml were taken with permission from Paul de Groot, who wrote an article about the sun, the images were taken from this article.
8. The images on /C002213/nt-lightni.shtml, and the photos on /C002213/nt-rainbow.shtml came from the royalty free photo CD - Water Land Air from DataKing.
9. The images on /C002213/nt-animals.shtml came from Encarta, the disclaimer of this program allows all materials to be used for educational purposes.
10. The wordsearch applet, and the javascript navigation menu are from http://www.brainjar.com.

References

• Books
  1. Michelson, A.A Light Waves and Their Uses. University of Chicago,1902.
  2. Gardner, Rober. Investigate and Discover Light. Englewood Cliffs, New Jersey, 1991.
  3. Catherall, Ed. Exploring Light. Steck-Vaughn Library Austin, Texas, 1989.
  4. Peeters, W. Röntgenstraling. Fontyn, 1974.
  5. Harbison, James P., and Robert E. Nahory. Lasers-Licht van atomen in het gareel. Netuur en techniek magazine, 1999.
  6. Wetenschappen, J.A. Lauwerys, ORBIS NV, 1981.
• Websites
  1. Farley, John W. "Power Lines and Cancer: Nothing to Fear." February 16, 2000. < http://www.quackwatch.com/01QuackeryRelatedTopics/emf.html > (July 10,2000).
  2. University of Connecticut "Electromagnetic Spectrum." June 2, 2000. < http://www.eng2.uconn.edu/cse/Courses/CSE208W/Microwave/34_EM_Spectrum.html > (July 13, 2000)
  3. University of California Regents "Electromagnetic Spectrum." 1996 < http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html > (July 13, 2000)
  4. UC Regents "Amplitude of a Wave." Universe of Light: What is the Amplitude of a Wave? 1996 < http://cse.ssl.berkeley.edu/light/measure_amp.html > (August 11, 2000)