Until 1917, there was no way of knowing if the red you saw at a stop
sign looked like the red other people saw. Jeff and Vinnie take the
colorblindness test: you can, too, at
http://colorvisiontesting.com/ishihara.htm. Plus, a quiz on Air Jordan
collector Ferdinand Marcos!
https://ia601504.us.archive.org/2/items/Week36Colorblindness/Week%2036%20--%20Colorblindness.mp3
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