Circa 1970s / Description on back: California Museum of Science and Industry, located south of the Rose Garden and adjacent to two major Los Angeles freeways, is the most popular place in busy Exposition Park. Here the nation's most attended science museum offers visitor-involvement permanent exhibits on subjects from electricity to the miracle of life. For a change of pace, the lively "Push-button University" offers some 60 temporary exhibits each year. Open 10 a..m. to 5 p.m. daily.