Changes

Light (view source)

9 bytes added , 11:09, 4 January 2018

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{{#widget:YouTube|id=RYY8nxi5is4}}

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The following ~~video is~~ useful to ~~see~~ the development of theories of light.

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The following videos are useful to understand the development of theories of light.

{{#widget:YouTube|id=MdoZBVJa_IE}}

{{#widget:YouTube|id=J1yIApZtLos}}

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