Day three at Sigma went wonderfully! The campers started the day off with lectures on optogenetics, the mathematics of card games, the chemistry of Jules Vernes' works, and more. As the day went on, campers dove deeper into the intricacies of their semilabs and watched a fascinating Experiment of the Day. In the evening, workshops featured meditation, Brazilian food, a look at unsolved mysteries, and, of course, more glassblowing. Finally, to round out the day, a beautiful classical music concert showed us how incredibly talented our campers and counselors are.