[Forgeties79]

Why would the average person know this about the water used in nuclear reactors?

There are also plenty of jobs where people are in close proximity to insanely hot/dangerous liquids.

[haskellshill]

That's exactly my point, people are clueless about the basics of nuclear power. Why would they know it? I mean, why would the average person know what a linear equation is or what year the first world war started?