There's an interesting volley online right now between two science journalists I admire, Michael Moyer and Robert Krulwich, over the color pink. In a blog post for NPR last week, Krulwich was shocked to learn from a video that pink does not exist, and Monday Moyer responded with his own ontological take.
Pink is not found in the ROYGBIV electromagnetic spectrum. But that does not mean it isn't a color! There's a key distinction between colors of light and of pigment, between additive color and subtractive color, that everyone seems to be glossing over.
Make winter nights brighter with a holiday-hued hearth
By Theodore GrayPosted 11.14.2007 at 2:00 am 2 Comments
Wood fires are yellow, right? Well, typically, but not necessarily. All hot bodies emit "black body" radiation in a color spectrum that depends on temperature: red for fairly hot, orange for hotter, yellow for really quite hot, all the way up through white for, well, white-hot. Most wood fires burn at about yellow-hot.