and 35 of these are in the U.S. The diagram above is based on the design of the stricken BWRs at Japan’s Fukushima Nuclear Plant. Like BWRs, mini-reactors boil water with nuclear-generated heat ...

Because this was a reactor that operated on water that was already at its boiling point, this also meant that the pressure inside the reactor was rising as well. The reactors at Fukushima-Daiichi ...