waves and information I

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many kinds of waves

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journeys of light I: media

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journeys of light II: surfaces

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the electromagnetic spectrum I

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the electromagnetic spectrum II

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speed, frequency and wavelength I

some interactions of waves with matter

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travel of waves and vibrations of media

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getting information from reflection

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getting information from refraction

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total internal reflection

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radio signals

sound: amplitude and frequency

analogue and digital signals


.Copyright: Smilite Ltd, 2019-2020

Copyright (c) David Brodie, 2019-2020

Photography: Adobe Stock