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Published byJodie Hensley Modified over 9 years ago
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Dr Lisa Jardine-Wright Cavendish Laboratory University of Cambridge
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What does this say when you look through the red filter and read?
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What does this say when you now look through the red filter and read?
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Red FilterGreen FilterBlue Filter
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Red Green Blue
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http://coolcosmos.ipac.caltech.edu/image_galleries/ir_zoo/
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Light can be emitted by objects.
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Light can be reflected by an object.
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Light is blocked…
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Light is blocked... in some wavelengths but not others.
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Light is blocked... in some wavelengths but not others.
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