Ahovercrafttravelson acushionofair.
Herealisedthat aheavyboatcould besupportedby acushionofair.
Thetrainwillfloaton amagneticcushionofair, just above thetrack.
Theairhockeypuckmovessoquicklybecause it'ssittingon acushionofair, so it nevertouchesthetabletop.
Theironis apleasureto use,glidingas it does on acushionofair.
Floating on acushionofair, thevehiclecantraveloverlandorsea.