Armed Polite Society

Main Forums => The Roundtable => Topic started by: MillCreek on August 18, 2015, 08:00:13 AM

Title: Coffee: is there anything it cannot do?
Post by: MillCreek on August 18, 2015, 08:00:13 AM

http://www.nbcnews.com/health/cancer/coffee-aids-colon-cancer-recovery-study-finds-n411326

It lowers your risk of diabetes, Parkinson's, liver cancer and aids in your recovery from colon cancer.

Title: Re: Coffee: is there anything it cannot do?
Post by: charby on August 18, 2015, 08:33:49 AM

Wait a year, it will be bad for you again.

Title: Re: Coffee: is there anything it cannot do?
Post by: Fly320s on August 18, 2015, 08:56:31 AM

Quote from: charby on August 18, 2015, 08:33:49 AM

Wait a year, it will be bad for you again.

Truth.

Title: Re: Coffee: is there anything it cannot do?
Post by: 230RN on August 18, 2015, 09:07:13 AM

I call it see-saw science.

I'm reminded of the old joke...

Quote

Voltaire drank 20 cups of coffee a day and lived 'till he was  80... or was it he drank 80 cups a day and lived 'till he was 20...?

I don't want to see "...studies show..."

I want to see "...studies funded by (organization) show..."

And just because you see, "...according to Pyotrzebi Grosnotchovic, MA, MS, PhD, MD, MBA, LLD, DDS, of the University of Ghulgliville," it doesn't mean the University of Ghulgliville sponsored or approved the study.

All it means is Dr. Grosnotchovic is good at Grant Proposal writing.

Terry

Title: Re: Coffee: is there anything it cannot do?
Post by: zahc on August 18, 2015, 09:49:38 AM

It is becoming quite popular, among those that still play with black and white photography, to develop film in instant coffee and washing soda. I thought it was sort of a gimmick, but more and more data is being published for it and more people are using it as their primary film developer, probably partly because the local photography stores all closed down or stopped carrying photochemicals. Sure, I can order developer (many of which are  ORM-D) online, but I can buy instant coffee anywhere.

Title: Re: Coffee: is there anything it cannot do?
Post by: 230RN on August 19, 2015, 09:40:36 AM

Any mild reducing agent will do to coax the slightly-dissociated halide anions (chloride, bromide, iodide, etc.) away from the silver, leaving atomic silver in the gelatin emulsion.

Including, BTW, vitamin C.

Son2 tried coffee as a developer and it worked, with only moderately satisfying results.  Images resulted, but they were kind of muddy.  It was a good question as to whether this was due to the coffee "dyeing" the gelatin brown, or because the film he used was ridiculously outdated, or because the time-temperature parameters were wrong, or because the moon was in the wrong phase or all three.

But it did act as a developer.

He knows I'm a coffee hound addict, and he resented my remark about it being a waste of good coffee.

It also seems to be a (lousy) indicator, since the dried remains of it tend to turn greenish in the presence of alkaline ions.  I remember noticing that once, but I'm not about to go testing it again.

Terry, 230RN

REF:
https://en.wikipedia.org/wiki/PH_indicator
IOW, like Litmus paper.