Cosmic Ray Balloon Flights at Snowmass-2001 As part of the outreach and education program at Snowmass-2001, a balloon flight re-enacting the 1911-12 flights by Victor Hess was conducted on Sunday, July 8, 2001. Organizers: Greg Snow (U. Nebraska), Jeff Wilkes (U. Washington) Idioma: English / English | Discovery of the Electron Experiments by J.J. Thomson in 1897 led to the discovery of a fundamental building block of matter. Idioma: English / English |