The caption on this picture is:
\”An Alcoa Inc. employee changes the glowing hot carbon anode of an electrolytic cell at the company\’s Mt. Holly production plant in Goose Creek, South Carolina. \”
Erm, anodes line the electrolytic cell. Thy\’re not thick blocks like that.
That glowing bit is the sow of aluminium itself.
Just as a check: carbon that is hot enough to glow like that is what…..burning I think we call it?
Update: and guess what? It\’s me that has it wrong. There\’s a surprise, eh? Alcoa tweeted me to point out that I was wrong so clearly this blog is read is high places (says he, desperately trying to find something positive here).