Captivated by the colors I saw, I took this picture today.
Any guesses as to what it is?
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Janet D. Stemwedel (whose nom de blog is Dr. Free-Ride) is an assistant professor of philosophy at San Jose State University. Before becoming a philosopher, she earned a Ph.D. in physical chemistry. Email her at dr.freeride@gmail.com.
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« Friday Sprog Blogging: experimental results (milk + lemon juice). | Main | Passion quilt: a meme for teachers. »
Pop quiz.
Category: Kids and science • Passing thoughts • Personal
Posted on: May 3, 2008 9:14 PM, by Janet D. Stemwedel
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Comments
The cheesecloth left over from the milk/lemon curdling experiment?
Posted by: OmegaMom | May 3, 2008 9:27 PM
Hmmm...looks a bit like a morning glory if you squint. However, I'm gonna guess the remains of last week's experiment?
Posted by: Susan B. | May 3, 2008 10:01 PM
Hm, you were draining something in a colander lined with paper towels or cheesecloth....red and yellow beets? Eggplant?
Posted by: Dr. Jekyll & Mrs. Hyde | May 4, 2008 12:17 AM
It's cheese cloth, but the cheese making experiment was a week ago, which would mean you left it out for a week...?
Posted by: Eva | May 4, 2008 1:27 AM
It looks a lot like what I've been coughing up the last few days.
Posted by: Greg Laden | May 4, 2008 8:05 AM
I'll be there soon for kitchen duty.
Posted by: Super Sally | May 4, 2008 11:16 AM
A cloth diaper suffering the aftermath of a kid eating crayons and markers?
Posted by: Aerik | May 4, 2008 12:43 PM
It looks like the dye job you'd get from peaches: pink from the skin wicking up in the juice and yellow from embedded pulp, but I can't think why they'd be in cheesecloth.
Posted by: Stephanie Z | May 4, 2008 1:33 PM
It is indeed the cheesecloth used to drain the curds in last week's experiment.
Clearly, we left the cheesecloth out at room temperature for 6 days in the interests of Science -- to see what would happen. Otherwise, we could have put it right in the compost bucket.
I was kind of hoping someone would identify the microbes that are making the cheesecloth pink and yellow. (I don't know the answer myself.)
Anyone?
Posted by: Janet D. Stemwedel | May 4, 2008 7:58 PM
Is the cheesecloth emitting a particular smell?
Serratia marcesans has a reddish color to it thanks to the pigment prodigiosin. That could be the culprit for your pinkish color.
Posted by: TomJoe | May 4, 2008 10:49 PM
As for the yellow pigment, it could be a pseudomonad. If you put the cheesecloth under a black light, you might see some fluorescence, which would be the pigment pyoverdin and is indicative of organisms in the genus Pseudomonas.
Posted by: TomJoe | May 4, 2008 10:58 PM
washday chromatography, accidental department?
Posted by: greensmile | May 5, 2008 7:37 AM
I'm guessing that's not curd from a Guernsey or a Jersey?
Posted by: Uncle Fishy | May 5, 2008 2:35 PM
Looks like the trash can after long night w/ my 1 4/5 yr old and the stomach bug (and BROTHER! was it a long night!!!)
Posted by: Costanza | May 6, 2008 1:00 AM