Hi, all --
Although this is not directly teaching-related, it will be the next time I
teach color vision.
I have dried-up wine residue in the bottom of a glass, left from the night
before. It's purple.
I put water in the glass to rinse it, and the water has a purple tint.
I pour this into a
Ok, I will try! Need to open bottle...any particular wine/quality? May need
bottle while I wait for dried up residue. Starting
G.L. (Gary) Peterson,Ph.D
Psychology@SVSU
On Feb 1, 2013, at 2:18 PM, Marc Carter wrote:
> Hi, all --
>
> Although this is not directly teaching-related, it wi
And who said research can't be fun, anyway?!
I think it will work with any red wine. (Oh, man, I just confused myself.
"Red" wine is purple, and leaves a residue that turns blue. Great.)
Happy weekend!
m
--
Marc Carter, PhD
Associate Professor of Psychology
Chair, Department of Behavioral a
I don't know about wine, but blue dye is often used for the colors
black, violet, and blue depending on the concentration of dye. Black
licorice is really a very concentrated blue dye. My guess is that this
is because the colors reflected off of the dye are at the lower limit of
the visible spe
My bet would be a ph difference in the glass versus the sink. Many "red" things
turn "blue" when acid is shifted to basic or vice versa ( I never remember
which way it goes. )
It is like growing hydrangeas in pine needles or lime. Two different colors w
from the same plant.
Sent from my iPhon
I'm not entirely sure this answers Marc's question (or if it at all
relevant) but I would suggest a look at the following article:
http://www.ncbi.nlm.nih.gov/pubmed/21314122
Quoting from the article:
|Tables 1 (wine A) and 2 (wine B) show the wines' color
|characteristics. It is clear that the
