Opening Saturday, Tellus Science Museum’s latest special exhibit will help its youngest visitors explore the science behind items that rotate.“The new exhibit literally is [titled] ‘Spin,’” said Cantey Smith, director of education for Tellus. “When you come into the Discovery Garden in The Collins Family My Big Backyard, you are going to find 11 different interactives, and then occasionally what you’re going to be experiencing is different aspects of physics, from gravity and then inertia and then centripetal force. All those things together combine to make objects spin.“... This [exhibit] is a little bit different because a lot of these activities are large. We’ve got a giant spinning centrifuge you can literally sit in and spin it and manipulate the interior axis yourself. So it’s bigger than a lot of things that we’ve had in the past.”Opened in January 2009, Tellus — an expansion of the former Weinman Mineral Museum — became a Smithsonian affiliate during its first year. Along with The Collins Family My Big Backyard hands-on science gallery, the 120,000-square-foot museum at 100 Tellus Drive in Cartersville is comprised of three main galleries — Science in Motion, The Weinman Mineral Gallery and The Fossil Gallery — a 120-seat digital planetarium and observatory.Developed by the Catawba Science Center, the “Spin” exhibit will be on display at Tellus until Sept. 5.According to http://tellusmuseum.org, “Through interactive exhibits and real-life examples, you will learn how objects spin, why things spin at different speeds, and how we use spinning objects in our daily lives. You will be fascinated to learn the science behind spinning toys, sports, transportation, space travel, entertainment — and even the Universe itself.”Through the exhibit, Smith hopes to spark visitors’ interest in science.“Anytime educationally that we can elaborate on a passion or a topic ... to give someone a bit more insight, then I feel like our job is done,” Smith said, adding another component to Saturday’s opening will be a Tellus Madd Scientist physics-related presentation at 2 p.m. in the Tellus Theater. “We want to influence people. We want to excite people, and we want to have people become interested in science.“So that’s why we’re here. That’s why we do what we do. We feel like science is a service and certainly done for the benefit of mankind. ... You have to educate people about science in an effort to just benefit our quality of life.”For more information about the museum and the “Spin” exhibit, call 770-606-5700 or visit http://tellusmuseum.org.