The Giant Sparking Globes that Dominate Boston's Museum of Science

Visitors to the Museum of Science in Boston are always in for a hair-raising treat when they enter the facility's Theater of Electricity. This small amphitheater is actually the permanent home of the largest air-insulated Van de Graaff generator on the planet—a pair of 40-foot high spheres crackling with up to… » 4/28/14 11:40am 4/28/14 11:40am