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Electromagnetic Spectrum

Published byFrederick Norman Modified over 9 years ago

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Presentation on theme: "Electromagnetic Spectrum"— Presentation transcript:

1 Electromagnetic Spectrum

2 Speed of Light: 186,000 miles/second
300,000 km/sec (300,000,000 m/sec)

3 Doppler Effect: A change in the Wavelength and Frequency of the wave of a moving object as observed by a stationary observer. Christian Doppler, 1842 Austrian mathematician and physicist.

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7 Red Shift and Blue Shift…… Stars/Galaxies?… Go Red !

8 The wavelength of light emitted by stars and galaxies is “shifted” toward red. By applying our knowledge of the Doppler Effect, we can conclude that objects in the Universe are moving away from each other. This red shift helps support the Big Bang Theory which suggests the Universe is expanding from a single explosive event billions of years ago.

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