And some small percentage of that converts to plutonium. Plutonium is as fissionable or more fissionable than the uranium isotope that is the useful isotope. So that one can see that if you arrange this properly, that the non-fissionable isotope of uranium can be made fissionable, and then fissioned to produce energy. It is the avenue to the vast amounts of electrical energy that are possible from nuclear energy. It is through plutonium that the future opens up.
Plutonium is, in fact, a metal very like uranium.
It's toxic, like lead or arsenic, but not much more so. It is radioactive, naturally. Radioactive, but much less so than radium, for example, which is scattered again all over the earth's crust. So it's not a very frightening material. So you say you hold it in your hand.