When you think of Instagram celebrities, the Kardashians and performers like Beyonce probably come to mind. But with the Instagram handle @PhysicsFun , one of Fresno’s own scientists recently reached a million followers. He has almost as many as the astronaut Scott Kelly, and even more than celebrity astrophysicist Neil deGrasse Tyson. Ray Hall, a physics professor at Fresno State, will be speaking about his work and social media celebrity status on December 3 at a monthly event in Central Fresno known as Café Scientifique . Listen to the interview for a preview of his talk, in which he explains how he built a massive online following around videos of curious physics toys.