21. Straight lines are quarks, while multi-colored loops are gluons ( the carriers of the fundamental force ). 22. The " electric charge " is a fundamental fundamental forces ( See also : magnetic field ). 23. These quarks and leptons interact through four fundamental forces : gravity, electromagnetism, weak interactions, and strong interactions. 24. Their theory on the fundamental forces is regarded by physicists as one of the landmarks of 20th-century science. 25. Elementary bosons responsible for the four fundamental forces of nature are called force particles ( gauge bosons ). 26. In 1687, Isaac Newton published the " Newton's Law of Gravitation, which describes the fundamental force of gravity. 27. Finally come the fundamental forces of nature, like gravity, and one omnipotent god is sufficent to explain those. 28. *I think the " four fundamental forces " and the Feynman diagrams are misleading and will confuse most lay-readers. 29. In physics, a fundamental interaction or fundamental force is a process by which elementary particles interact with each other. 30. Why don't the other gauge bosons do the same, thus causing all of the fundamental forces to be weakened?