In 1978, technology historian Rachel Maines was researching needlework when she came across ads for vibrators in 19th century magazines. They were sold as medical treatment for women with "hysteria." Symptoms were depression, irritability, confusion and more. Maines' research is the basis of a play on stage in Salt Lake and a Hollywood film that opens here next month. Tuesday, we'll talk to Maines about the history of the vibrator and what it can still tell us about women's roles in society.