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 Mr. Barnett’s Site
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Light
Basic ideas about light:
Light travels as a wave
Light travels in straight lines
Light has to reach your eye for you to see it
Therefore it has to be transmitted by a luminous object or reflected from an object
Objects can be:
 Transparent - light passes through unchanged
 Opaque - light doesn’t pass through
Translucent - light passes through, but not in straight lines.  Translucent glass is the sort of thing you want for your bathroom windows.