Re: How do the manage the fuel
"I'm curious. What sort of person reads The Register, but doesn't know where Voyager 2 gets its electric power from? (Isn't that in the GCSE science curriculum?)"
The kind of reader who doesn't study much about space exploration.. and who is probably a lot older than you might think..
Being Scottish we didn't have GCSEs and we certainly didn't have a "science" class. We had Chemistry, Physics, Engineering Drawing and Mechanical Engineering.. none of which included any mention of Voyager 2 or it's power source. At least not when I was in School, although things may have changed since.