4 Dec
2003
4 Dec
'03
9:02 a.m.
I don't recall seeing the red/blue thing until the 1980's. But I didn't travel much outside the U.S. until then, so I may not have much perspective. At 07:30 AM 12/4/03, Eugene Salamin wrote:
When did the red=hot, blue=cold convention first appear? Very likely it preceeded the theory of black body radiation, and it certainly preceeded the technology required to make an object blue hot. Perhaps the proper analogy is that red is the color of fire, and blue is the color of ice.