Beacon’s nerdiest night out is back. On April 18, the Howland Cultural Center once again plays host to Nerd Nite Hudson Valley, where learning meets laughter and PowerPoint presentations pack a punch. Expect an evening of medieval warfare, spelling revolutions, and cinematic mythmaking—along with cold drinks and the camaraderie of fellow knowledge-seekers. For the uninitiated, Nerd Nite is like a TED Talk with less pretensions and more beer. Author Gabe Henry and Vassar Professors Nancy Bisaha & Mia Mask will give three informative-yet-entertaining visual presentations on building castles, failed spelling & the history of black westerns.