UnThreaded | Threaded | Whole Thread (5) | Ignore Thread Prev | Next
Author: ariechert Big funky green star, 20000 posts Old School Fool Add to my Favorite Fools Ignore this person (you won't see their posts anymore) Number: of 63284  
Subject: Copper and silver rings Date: 11/30/2012 2:44 PM
Post New | Post Reply | Reply Later | Create Poll Report this Post | Recommend it!
Recommendations: 2
My niece that makes jewelry for a living shared this on facebook. It's quite interesting. There are pictures at the link of what happens over a period of time as the rings are worn.

Copper and silver rings may not be such a good idea.
by binnion on November 23, 2012

"When you join two metals together in a ring beyond your aesthetic creation you also create something that under the right circumstances can destroy all your work. Two metals joined together in the presence of an electrolyte create an electrolytic cell which is in essence a battery. In a ring the electrolyte is provided by the water you constantly expose your hands to through washing, sweat, swimming etc. One of the metals will be more electrically positive or anodic and one will be more electrically negative or cathodic. The the difference between these poles is measured in volts. When exposed to the electrolyte the anode will dissolve and supply ions to the electrolyte. Just like electroplating or electroetching. The higher the voltage the greater the activity and the faster the anode will dissolve."

Pictures and full story can be read at the link:

http://ganoksin.com/blog/binnion/2012/11/23/copper-and-silve...

Art
Post New | Post Reply | Reply Later | Create Poll Report this Post | Recommend it!
Print the post  
UnThreaded | Threaded | Whole Thread (5) | Ignore Thread Prev | Next

Announcements

Foolanthropy 2014!
By working with young, first-time moms, Nurse-Family Partnership is able to truly change lives – for generations to come.
When Life Gives You Lemons
We all have had hardships and made poor decisions. The important thing is how we respond and grow. Read the story of a Fool who started from nothing, and looks to gain everything.
Post of the Day:
Macro Economics

Looking at Currency Ratios
What was Your Dumbest Investment?
Share it with us -- and learn from others' stories of flubs.
Community Home
Speak Your Mind, Start Your Blog, Rate Your Stocks

Community Team Fools - who are those TMF's?
Contact Us
Contact Customer Service and other Fool departments here.
Work for Fools?
Winner of the Washingtonian great places to work, and "#1 Media Company to Work For" (BusinessInsider 2011)! Have access to all of TMF's online and email products for FREE, and be paid for your contributions to TMF! Click the link and start your Fool career.
Advertisement