Dunedin Fine Art Center unveils a wealth of intriguing visual treats with the opening of its fall exhibits this Friday. In Artist as Inventor, artists from across the continent offer mixed-media works that explore the idea of art as an inventive process. Several represent the Boston area’s community of scientists and artists: kinetic sculptor Steve Hollinger, whose creations are activated by environmentally-produced energy (light, heat, wind); former MIT Artist-in-Residence Arthur Ganson, who describes his works as “machines with a funny bone; and Ensemble Robot, a collaborative team of artists/musicians/engineers who construct robotic instruments like the Heliphone, Bot(i)Cello, BeatBot, BloBot and WhirlyBot. Magnetized iron filings, silicone rubber, melted polyester, mercury, enamels and other unusual components make up the impressive catalog of works featured in History of the Dot: David McKirdy, A 25-year Retrospective. And in Dada-DO! Area Students Go DADA — a child-created, child-curated exhibit — young artists from DFAC’s summer art camp present works inspired by the irreverent, mixed-media concepts of the 1920’s Dada movement. Art as Inventor, through Dec. 24, History of the Dot, through Oct. 19, and Dada-DO!, through Oct. 14, 10 a.m.-5 p.m. Mon.-Fri., 10 a.m.-2 p.m. Sat., 1-4 p.m. Sun., 1143 Michigan Blvd., Dunedin, 727-298-3322, dfac.org.