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Pink
light, yellow paint = red light
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Cyan
filter, white paint, mag light
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Additive
and subtractive can seem to be two different worlds but really two ways of
looking at the same thing—different wavelengths reaching your eye. Some might
come from a light course—example in room—some come from an object reflecting
light (--example in room. )
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One
color light on white board.
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Make
white light (y and b)
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Cyan
board, b,y lights.
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Yellow
light, cyan board: cyan is absorbing non-cyan colors, namely red (b and g
make cyan)
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Yellow
light is r + g mixed. When the red part is absorbed, result I green.
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Filter
is subtractive—filters out some wavelengths (everything but the color of the
filter…)
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Y light,
white surface, no filter
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Y light,
white surface, M filter. =- red light (absorbs g let s r through)
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You can
play with this—point is that light emitting, reflection, absorption is taking
place all at once in the real world.
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