I would like to see. Can you post the clip.
Gosh, Rummy. I’m sorry. I thought I posted the clip! What a dumb, dumb!
Here it is!
http://www.youtube.com/watch?v=DHfR_wybvw0&feature=relmfu
Criticality was reached upon the technicians adding a seventh bucket of uranium solution to the tank.[6] The nuclear fission chain reaction became self-sustaining and began to emit intense gamma and neutron radiation. The technicians, one of whom had his body draped over the tank, observed a blue flash of ionized air[7] and gamma-radiation alarms sounded.[8][9] The two technicians closest to the tank immediately experienced pain, nausea, difficulty breathing, and other symptoms. The technician closest to the tank lost consciousness in the decontamination room a few minutes later and began to vomit.[10] There was no explosion, but fission products (fission fragments of U‑235 with atomic masses typically around 95 and 137, such as yttrium‑94 and barium‑140) were progressively released inside the building.