Steel (7/20/2011)

 photo by Rev Stan

Today I learned about steel. I read this quote: "Persistence is to the character of man as carbon is to steel."     -Napoleon Hill and wondered how carbon is related to steel. Turns out steel is a mix of iron and carbon. Very low amounts of carbon actually. The carbon acts as an alloy to harden the structure. Alloys change the mechanical properties of the base metal that it is mixed with.