...more like canons.
Atomic...
Canon may refer to: Canon (fiction), a body of works considered genuine or official within a fictional universe; Canon (company), a Japanese imaging and optical products corporation; Canon (liturgy) or the Canon of the Mass, the Eucharistic Prayer of the Roman Rite; Canon (music), a contrapuntal composition which employs a melody with one or more imitations.
Cannon:A cannon is a type of artillery, usually large and tubular, that uses gunpowder or other explosive-based propellants to launch a projectile over a distance. Cannon vary in caliber, range, mobility, rate of fire, angle of fire, and firepower; different forms of cannon combine and balance these attributes in varying degrees, depending on their intended use on the battlefield