EntityQ537420· pop 16· linked from 179 articlesgas balloonSign in to saveballoon filled with gas less dense than airConnectionsRobert brothersEntitySoviet UnionConceptWorld War IConcepthydrogenEntityGoogleOrganizationheliumEntityJules VerneEntityAmerican Civil WarConceptInternational Standard Book NumberEntityHokkaidoEntityGulf of MexicoEntityrocketEntitybatteryEntityWayback MachineEntityBaja CaliforniaEntitydigital object identifierEntityNapoleonic WarsEntity1900 Summer OlympicsEntityairshipEntityUnited States NavyEntityCategories1780s introductions1783 beginningsBalloons (aeronautics)French inventions