When this beam struck a target of erbium deuteride, the team detected neutrons coming from the target with precisely the energy expected if they were generated by the nuclear fusionoftwo deuterium nuclei.
The occasional piercing got in the way, and there was a gross-out or two when eager consumers forgot to change screens, but it was a big step forward from last year's Tongueii, which failed to account for static electricity, fusion and twoof Fermi's laws.