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Electromagnetic Spectrum

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Catelynn Hettick

on 14 October 2013

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Transcript of Electromagnetic Spectrum

Electromagnetic Spectrum
Catelynn Hettick

Doppler Radar
What is it?
The Doppler radar is a radar tracking system that uses the Doppler effect to determine location and velocity of things like a storm, cloud, etc.
How do they work?
They send beams out in a circle formation around the radar. The electromagnetic waves hit the object then bounces back to the source.

Polarized Sunglasses
How do they work?
The lenses on the polarized sunglasses reduce glare reflected at some angles off of shiny non metallic surfaces.
The electromagnetic waves hit a non metallic surface such as water and the waves then reflect to the glasses. The polarized glasses block the sun at a certain degree angle.
Why do we see sunsets?
The colors of light from the sky are determined by the wavelengths of the light and size of particles. Short wavelength are blue and violet are scattered by molecules in the air much more than other colors.
Red is the longest wavelength of any visible light. The sun is red on the horizon where its extremely long path blocks the rest of the colors.

(n.d.). Retrieved from http://www.komonews.com/weather/faq/4347886.html
Zimmerman Jones, A., & Zimmerman Jones, A. (n.d.). Retrieved from http://physics.about.com/od/physicsintherealworld/f/dopplerradar.htm

Electromagnetic Waves
The dual nature is that electromagnetic waves are energy waves of magnetic and electrical fields, but also particles. These waves have different frequencies and wavelengths.
Electromagnetic particles can travel through some mediums and not others. They have the ability to travel through a nature of the medium and the frequency of the radiation.
With electromagnetic waves, they are also particles that can travel through both mediums and a vacuum.
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