Acera School will host its Fall Innovator Symposium on October 20, 6:30-8:30PM on its campus (5 Lowell Avenue in Winchester).  It’s free and open to the public of all ages.  Meet scientists, researchers, and entrepreneurs from MIT Media Lab and Geobiology Lab, as well as Boston University’s Social Development and Learning Lab.  Activities include culinary computing, robotic creations, programmable tattoos, stain your own cells, woodworking challenge, and an Ig Noble humor show.