perusvoimat
Perusvoimat is a Finnish term meaning "fundamental forces," used in physics to denote the basic interactions that govern the behavior of matter and energy. In contemporary particle physics these are classified as four forces: gravity, electromagnetism, the strong nuclear force, and the weak nuclear force. Each force has distinct properties, mediating particles, and roles across scales from subatomic particles to the largest structures in the cosmos.
Gravity acts between masses, has infinite range, and is described at macroscopic scales by general relativity;
Understanding perusvoimat is central to particle physics, cosmology, and attempts at theoretical unification. Electroweak unification combines