Electromagnetic Waves <Tab/>If you stand in front of a campfire, even though you do not actually touch the flames, something that is emitted from the blazing wood, makes itself felt on your face or hands. Out in the noonday sun, on a summer's day, you get the same sensation of warmth. You know that if you stay out in the sun too long you will get sunburned, possibly painfully. You …
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showed last 75 words of 4008 total
…York, 1956 "Electromagnetic Radiation." Accessed on: 21 March 2004 <Tab/><http://www.imagine.gsfc.nasa.gov/docs/science/ know_l1/emspectrum.html> "Electromagnetic Waves." Accessed on: 20 March 2004 <Tab/><http://www.colorado.edu/physics/2000/waves_particles/> "Radiation Protection." Accessed on: 20 March 2004 <Tab/><http://www.radstop.com> The New Book of Popular Science. United States: Grolier, 2002