Microbial fuel cells are the focus of a seminar Friday (4/12) sponsored by Ohio State’s Environmental Science Graduate Program. Penn State’s Bruce Logan, pictured, presents “Energy from Water: Microbial Fuel Cell Technologies Meet Salinity Gradient Energy” at 3 p.m. in 021 Lazenby Hall on Ohio State’s campus in Columbus. There’s also a video link to 121 Fisher Auditorium on OARDC’s Wooster campus, 1680 Madison Ave. Free. All are welcome. (See later posts here and here.) (Photo: Penn State.)