This Blog serves as two things: a photo-diary of our lives between 2007 and mid 2011, when we saw some incredible things and met some amazing people; and a reflection of our more normal lives since then.

Tuesday, 5 October 2010

Sacrificial anodes

A sacrificial anode is a big lump of metal, usually zinc, which is attached to a metal object such as a ship, to inhibit the object's corrosion. The anode is electrolytically decomposed over time while the object remains free of damage. A new anode looks like this:


After three years of electrolytic decomposition, the Africa Mercy's anodes look like this:



One of the many jobs needing to be done whilst the ship is out of the water, is the replacing of the hundreds of anodes that line the hull. Another fascinating blog entry by Olly.

2 comments:

Steven said...

hundreds? Is that an exaggeration?

Anonymous said...

Hi Steven, yes, hundreds. If you look at my photo http://3.bp.blogspot.com/_ENFH0w2jDVg/TKXvO_poPFI/AAAAAAAADIA/oImxdgmase4/s1600/30th+september+2010+012.jpg you will see them all over the hull. Olly