'Helium or this can be used to raise a balloon from which a gondola is suspended'
hot air
UTTER NONSENSE: Helium or this can be used to raise a balloon from which a gondola is suspended
Helium or this can be used to raise a balloon from which a gondola is suspended
Helium or this can be used to raise a balloon from which a gondola is suspended
UTTER NONSENSE
hot air
UTTER NONSENSE