The VT Proximity Fuse. This was a highly classified invention of World War 2, which enabled bombs and projectiles to detonate at a set distance from the target. Greenfield’s wartime production included a manufacturing plant for these devices. The surviving residents, who once worked at the plant, were not explained the purpose of their efforts until the 1980s. The Museum of Our Industrial Heritage has examples of actual devices and components on exhibit for our visitor’s appreciation.
Credit: Museum of Our Industrial Heritage