Rays and How We Utilize Them
Suggested websites
http://science.hq.nasa.gov/kids/imagers/ems/waves2.html
http://www.purchon.com/physics/electromagnetic.htm
http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
http://science.howstuffworks.com/radiation.htm
http://coolcosmos.ipac.caltech.edu/cosmic_kids/learn_ir/index.html
http://www.rerf.jp/general/whatis_e/index.html
http://www.pbs.org/wgbh/nova/physics/electromagnetic-spectrum.html
http://csep10.phys.utk.edu/astr162/lect/light/spectrum.html
http://www.kentchemistry.com/aplinks/chapters/7atomicstructure/electromagneticspectrum.swf
http://science.howstuffworks.com/
Destiny Catalog Websites
Electromagnetic radiation can be described in terms of a stream of photons, which are massless particles each traveling in a wave-like pattern and moving at the speed of light. Radio waves, light, x-rays, and other parts of the electromagnetic spectrum are all electromagnetic radiation. This article, Measuring the Electromagnetic Spectrum instructs you about the different types of radiation in the electromagnetic spectrum. Definitions are provided for many terms used in the descriptions for better understanding of this subject. Color illustrations also accompany many of the terms.
Topic: Electromagnetic waves, Radiation Language: English Lexile: 1300 Video
http://imagine.gsfc.nasa.gov
Students will learn about the nine levels of frequency and wavelengths included in the electromagnetic spectrum by studying this chart, which allows students to click on any of the nine levels for additional information. Each level contains an explanation of how the frequency can be used, along with statistics for the frequency, wavelengths, and quantum energies. Also included is a calculator for wavelengths and frequency, which provides an opportunity for students to experiment with the formulas.
Topic: Frequency spectra, Electromagnetic waves, Electromagnetism http://hyperphysics.phy-astr.gsu.edu
Many devices you probably use every day are made possible by the electromagnetic spectrum. Some examples of these useful items are radios, cell phones, and microwave ovens. The scientists at the National Aeronautics and Space Administration, or NASA, invite you to visit their colorful, informative web site to uncover the facts about these essential, yet sometimes invisible, waves. The range of the spectrum covered includes radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays. You'll gain knowledge about the discoveries of scientists James Clerk Maxwell and Heinrich Hertz. Learn how cool these types of waves can be.
Topic: Electromagnetic waves, Spectrum analysis Language: English Lexile: 990
http://science.hq.nasa.gov
How does your remote control work? This site will give you the history of remote controls, from bombs in World War II to garage door openers and today's television remote controls. You can learn the differences between IR and RF commands, and how light signals and radio waves help make your remote gadgets work. There are links to looking inside a television remote control, the invention of the remote control, and universal remote control codes.
Topic: Remote control http://electronics.howstuffworks.com
Ultraviolet and Infrared Photography Summarized
Andrew Davidazy of the School of Photographic Arts and Sciences presents information about ultraviolet and infrared photography. Information is also linked to the Imaging and Photographic Technology Department of Rochester Institute. Learn about the proper use of lights, filters, film, and exposure techniques when applied to the four basic methods of photographing the invisible spectrums of ultraviolet and infrared light. Useful information to art historians is produced by ultraviolet and infrared photography.
Topic: Infrared photography, Ultraviolet Photography Lexile: 1370 http://people.rit.edu
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Science in Context provides topic overviews, experiments, biographies, pictures and illustrations, as well as articles from over 200 magazines and academic journals and links to quality web sites. The database covers curriculum-related science topics, and offers easy-to-use tool to identify content directly correlated to state and national standards.
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A collection of over 800 journals and 6 subject specific Delmar reference titles provide robust coverage of environmental issues and policies, including diverse perspectives from the scientific community, governmental policy makers, as well as corporate interests.
*Brought to you by the Massachusetts Board of Library Commissioners and Massachusetts Library System with state funds and federal Institute of Museum and Library Services funds.
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