Scientists may now have identified exactly what is dark matter in the universe. Fermions let off a special kind of electrical charge, one that requires motion which gives off a kind of toroidal or donut-shaped charge. It would be interesting if cosmologists could prove a lattice formation of these particles on large scales right after the Big Bang coupled together with ordinary matter, somehow. Matter had to be excited somehow and moving in a unique way to form the origins of the cosmos. Quoting: ..Anapole dark matter makes use of ordinary electromagnetism that you learned about in school – the same force that makes magnets stick to your refrigerator..
Fermions in electrical engineering: