Galvanic series voltage range

Anybody know what the galvanic series is? It's the difference between metals. The farther apart they are, the greater the potential reaction — the voltage you can get between two metals. That voltage is a function of the free energy of formation of those materials. You can prove it from chemical thermodynamics. This is MIT; we go back to the fundamental principles. The most noble metal is actually a non-metal — it's graphite. Then platinum. They don't have gold on here; they list titanium, and I'm going to talk about why titanium [is] down here later. The least noble — the one that wants to corrode the most — has a negative 1.6 voltage. Platinum and graphite have a 0.2 voltage. The most corrosive of the ones listed here is magnesium. Actually beryllium would be on here, on a practical structural materials plot.