Q.  Why hasn't nuclear-fusion energy come about?

A.  Because all the researchers made a basic error in their approach.

Q.  What basic error?

A.  They all assumed that they would have to put energy into a reaction to make fusion occur.

Q.  What does nuclear fusion mean, anyway?

A.  In this case, it means forcing hydrogen atoms together to make helium -- this releases energy.

Q.  Why is putting energy into a reaction not going to work?

A.  The fusion process is an exothermic reaction -- it produces energy. Exothermic reactions are suppressed by adding energy.

Q.  Nuclear fusion happens in the Sun -- isn't this because of high temperatures?

A.  No, in the Sun it happens because of high pressures.

Q.  Where can I find out more?

A.  Look at Why 50 years of nuclear fusion research has been wasted.