The pen may be mightier than the sword, but a magic wand is more powerful than either, or at least according to this year's Forbes' list of the world's richest celebrities. Harry Potter author JK Rowling earned more than any other celebrity, according to the annual Celebrity 100 list, taking home $300m (Â£150m) last year. There were other strong British performances from Keira Knightley, announced as the world's second best paid female actor, Potter actor Daniel Radcliffe and David Beckham.
A facultative anaerobe is, simply speaking, an organism which possesses the ability to survive in an environment containing oxygen while growing even more efficiently in an environment without oxygen. Facultative anaerobes can optionally function without oxygen by two main mechanisms; fermentation and alternate terminal electron acceptors. In fermentation, glycolysis is performed and pyruvate is converted to a fermentation product, reducing NAD+ back to NADH. (Note that there are likely many variations on this).
As electrons pass through the chain to the final electron receptor a type of potential energy called proton motive force is generated and used to synthesize ATP from ADP and P. Whereas, fermentation is a biological process in which the electron acceptor endogenous (from within the cell).