Laughing Boy with Flute across the grain of the wood running diagonally. A copy is in the Boucher de Perthes Museum, Abbeville. In the collection of the late Alfred Beit, London. In the collection of Otto Beit, London." Hofstede de Groot noted several laughing boys by Hals along with this one (catalogue numbers 11 through to 39). This painting was also documented by W.R. Valentiner in 1923. Other boys painted by Hals in round tondos: Laughing Boy with Flute Laughing Boy with a Flute is a painting by the Dutch Golden Age painter Frans Hals, painted in the early 1620s. This painting was documented
Darlene Cavalier Darlene Cavalier Darlene Cavalier is an advocate for public participation in science and science policy, a writer, and an entrepreneur. She is a Professor of Practice at Arizona State University, School for the Future of Innovation in Society and the Center for Engagement and Training in Science and Society. She is the founder of SciStarter, an online citizen hotspot that connects people to citizen science projects around the world. In 2016, Cavalier co-organized Citizen Science Maker Summit, hosted by ASU. In 2017, Cavalier was appointed to the National Academy of Sciences' Committee on Designing Citizen Science to Support Science Learning