Muscle-powered personal weapons (Meleé)
Armor etc.
Small arms firearm
medieval siege weaponry
ammunition
Military unit
Communications
Military vehicles[?]
Aircraft (For a list of individual military aircraft types, see aircraft types.
Fortification
Doctrines
... enough, for example after starting it with a short rip string or by a snap of the thumb, a person holding it in her hand can accelerate the gyroscope to incredibly high ...