But others pass between the wires and enter the region within it. There, a significant proportion collide in the centre of the sphere and fuse, producing neutrons and energy. When Hirsch left fusion research,he donated one of his experimental spheres to his alma mater, the University of Illinois. Two decades later, Miley returned to the concept and developed the rudimentary desktop fusion device that now sits on his bench. The neutrons stream out of the sphere in all directions, because they carry no electrical charge, and so cannot be directed by electric or magnetic fields.
Neutrons go anywhere they want to.
The design of the spherical grid is crucial to the success of Miley's fusion machine, and he has spent several years perfecting the design. The wires combine to create an electric potential shaped like the surface of a sphere. This meant a tightly wound grid with small gaps between the wires. On a globe and has large holes. This produces dimples in the basically spherical electric field.