In nature, brilliant colors appear in myriad places—along the surface of a bubble, on butterfly wings, after a rainy day, or through a windowpane. Remarkably, many of these hues don’t involve any chemical dyes or paints. Instead, these colors originate from the internal material structure and their interactions with light. This Harvard Museum of Natural History workshop on February 1 from 2 – 3:30 pm will dive into the world of “structural color,” zooming in on fascinating structurally-colored materials in nature with microscopes and zooming out to applications of structural color for next-generation materials. As the finale, workshop attendees will craft holographic rainbow chocolate to take home. No prior science background is required to participate in this class. All attendees must be 18 or older. $30 Harvard Museum members, $35 nonmembers. Register at https://www.hmnh.harvard.edu/event/holographic-chocolate-secrets-structural-color
