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Message: <blockquote data-quote="roblem" data-source="post: 29203098" data-attributes="member: 580495"><p>Didn't watch the video. While the object's physical properties determine the reflected wavelength, what the perceiver perceives also depends on the perceiver. For instance, there are colour-blind people. The other thing to consider is that while we distinguish the wavelength of the "Blue Clip", we might visualize it differently. If the colour you visualize when you see blue is A, and the colour you visualize when you see red is B, it might be swapped for another person. I don't think there is a way to know surely. Also, some people see colours when they hear sounds and see numbers(look up Synesthesia).</p></blockquote><p></p>

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