Question of the Week, from the Naked Scientists
Science:Life Sciences
Why might a person not be able to see coloured ink on a whiteboard?
2010-10-24
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Why might a person, who apparently isn't colour-blind, not be able to see red or green on a whiteboard? What is colour-blindness anyway? We try to find the answer in this Question of the Week. Plus, we ask which is worse for the environment - a few weeks of volcanic eruption or a few weeks of aviation.
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