1.   Cockroft dearly believed that the source of the neutrons was thermonuclear fusion.

2.   Eventually the internal pressure and temperature rise sufficiently for thermonuclear fusion to begin.

3.   Such energy sources include nuclear fission, nuclear fusion, solar energy together with biomass, controlled thermonuclear fusion and, finally, geothermal energy.

4.   Harold P. Furth, an architect and leader of American efforts to harness thermonuclear fusion for the generation of electricity, died on Thursday in a hospital in Philadelphia.

5.   How thermonuclear fusion can produce unlimited energy.

6.   In a plasma composed of fuel capable of undergoing thermonuclear fusion, that research could lead to more economical reactor designs.

7.   The device is to generate miniature thermonuclear fusion explosions for studying the workings and reliability of hydrogen bombs.

8.   These are stars that failed to attain sufficient mass to ignite the thermonuclear fusion that makes stars shine.

9.   As well as the cost of the project, France and Germany also already have their own facilities for investigating thermonuclear fusion as a potential energy source.