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Posted: Sat Feb 28, 2015 12:11 pm
by Malcolm
Posted: Sat Feb 28, 2015 3:01 pm
by TheCatt
For the record, of course, the dress is probably not blue, nor black, nor gold, nor white. Those are just the colors we perceive being reflected back at us.
Which I'm slightly surprised ngt didn't bring up.
Posted: Sun Mar 01, 2015 10:47 pm
by TPRJones
Now that's a bit pedantic of you. Without accepting that as a basic part of their meaning, then the words for colors have no meaning left.
Posted: Mon Mar 02, 2015 8:27 am
by TheCatt
TPRJones wrote:Now that's a bit pedantic of you. Without accepting that as a basic part of their meaning, then the words for colors have no meaning left.
But if we truly want to know what color a thing is, how can we? 10% of people are color-blind, other species can see frequencies that we cannot see. At any rate, I agree with you, I just brought it up cuz it seemed relevant.
We watched a Brain Games about color perception this weekend, my daughters:
Youngest: Mommy, they said a stop sign wasn't red. But they're wrong.
Oldest: Ugh! We just see what colors are reflected, we don't really know what color it is!
Posted: Mon Mar 02, 2015 11:12 am
by Malcolm
...other species can see frequencies that we cannot see.
One of my favourites.
It is the only organism known to simultaneously detect the four linear and two circular polarization components required for Stokes parameters, which yield a full description of polarization. It is thus believed to have optimal polarization vision.
Posted: Mon Mar 02, 2015 12:35 pm
by GORDON
I like how lots of flowers have ultraviolet landing strips on their petals that only bees can see.
Posted: Mon Mar 02, 2015 1:58 pm
by Leisher
Posted: Tue Mar 03, 2015 12:26 am
by TPRJones
The dress is still black and blue.
Posted: Tue Mar 03, 2015 10:32 am
by Leisher
Posted: Wed Mar 04, 2015 7:29 pm
by TheCatt
Posted: Thu Mar 05, 2015 1:17 pm
by Leisher
Posted: Fri Mar 06, 2015 1:13 pm
by Vince
