Wednesday, April 27, 2011

Elements 25 - 30

Taking a break from doing origami to put up some more elements!


1 comment:

Anonymous said...

Just for accuracy: Zinc doesn't rust easily, it's iron that rusts, which is why zinc is added to it to make it more long-lasting. A piece of pure zinc will tarnish (forming a layer of zinc carbonate), but this doesn't penetrate into the rest of the metal. Zinc solutions are used to make galvanized metals - that's what creates the mottled-crystalline appearance of galvanized steel, for instance; this coating protects the steel from rusting prematurely.