Dear Physics Forum Members:
As I understand it (and, I must say, it isn't very much), one big drawback to controlled thermonuclear fusion when
using the magnetic bottle method is that the charged particles that compose the fuel spiral along the magnetic lines of
force until they touch a cooler body, thus dissipating the fusion reaction. So, at least from a commonsense view of things,
neutrally charged fuels are to be used, that is, pellets composed of nothing but neutrons. At the present time, such a
fuel is not feasible, as the mean lifetime of a neutron is 881.5(15) seconds (just under fifteen minutes). However, this
lifetime is arrived at by experimenting with individual neutrons. Has there been any experimentation done by combining
two or more neutrons and observing the mean lifetime of the resulting combinations? Thank you.

Sincerely yours,
Carl Mesaros