■ Talk: The Great Missoula Floods & Ice Age Floods National Geologic Trail
A lecture by geologist Richard Waitt on how Earth's greatest floods have changed the landscape in the Pacific Northwest will be offered tomorrow (Sept. 30) at 7 p.m. at USGS, 345 Middlefield Road (Conference Room A), Menlo Park. For more information, visit usgs.gov.
■ Talk: Jennifer Rosner
Jennifer Rosner discusses her experience raising two deaf daughters, her discovery of a history of deafness in her family, and the controversies currently raging in deaf culture tomorrow (Sept. 30) at 5 p.m. at Beckman Center, Munzer Hall, Stanford University. For more information, visit events.stanford.edu.