As I’m sure most of us are aware by now, there have been a couple of hydrogen explosion at the Fukushima plant.
But why hydrogen? It takes a great deal of energy to split water molecules to obtain elemental hydrogen, so where is this hydrogen coming from? Does this have anything to do with the sea water with which they’ve been trying to cool the reactor cores, and with the salt content of that water? Or do the neutrons crash into the water molecules and break them up?