Blackfly: A look at the life cycle of the blackfly, and its effects in northern Canada and Africa. Desalination: A practical method of desalination using reverse osmosis is presented. Memory - Come to think of it (repeat): A look at recent research into the brain's memory capacities. Dr. Karl Illmensee: A look at the work being done by Dr. Karl Illmensee (de) at the University of Geneva to study the possibility of causing cancerous cells to revert back to normal cells.