CORNWALL, ENGLAND—A team of researchers led by Robert Van de Noort of the University of Exeter has built a sewn-plank boat using only Bronze Age tools. A 4,000-year-old boat found on the east coast of northern England served as the model for the project. “The boat has already given us a few surprises along the way, so the launch really is a leap into the unknown,” said Van de Noort. Be sure to watch the time-lapse video of the construction process. The launch is scheduled for next week.