How do different battery types work? Read about the electrochemical principles and the construction of a wide variety of batteries. At the bottom of this page are links to other sites, including some that describe the theory behind lead acid batteries.

The World Aluminum Organization provides the most comprehensive site on aluminum. Among its many pages this web site has an excellent page on the history of the discovery and production of aluminum.

A virtual tour through aluminum production

The Aluminum Association provides information on the metallurgy, production, uses and recycling of aluminum.

The Corrosion Doctors site offers more detailed biographical information on Charles Martin Hall.