In 1971, this ferret played a key role in the construction of particle accelerators at Fermilab’s Meson Laboratory. As sections of vacuum chamber were connected together, Felicia would run through them, dragging a string. After she had carried the string all the way through, researchers would use the line to run a rag doused in cleaning solution through the long, narrow tubes.
via Boing Boing
June 13, 2013