← Back to context Comment by hanniabu 7 years ago Case in point, helium filled balloons that deflate over a couple days. 11 comments hanniabu Reply jammi 7 years ago That’s just because rubber balloons are extremely porous, especially when stretched. They don’t hold other gases well either. ricardobeat 7 years ago Helium balloons are commonly made out of Mylar instead of rubber, and can keep inflated for weeks. Cthulhu_ 7 years ago The type intended for keeping around / in a shop for longer time are, but the children's party type often are inflated on the spot. 5 replies → yetihehe 7 years ago Air filled balloons also deflate over a couple days. namibj 7 years ago Compare with aluminium coated foil. They don't deflate that fast. Keloo 7 years ago Or intestines of cattle.https://en.wikipedia.org/wiki/ZeppelinEarly Zeppelins used rubberised cotton for the gasbags, but most later craft used goldbeater's skin, made from the intestines of cattle
jammi 7 years ago That’s just because rubber balloons are extremely porous, especially when stretched. They don’t hold other gases well either. ricardobeat 7 years ago Helium balloons are commonly made out of Mylar instead of rubber, and can keep inflated for weeks. Cthulhu_ 7 years ago The type intended for keeping around / in a shop for longer time are, but the children's party type often are inflated on the spot. 5 replies →
ricardobeat 7 years ago Helium balloons are commonly made out of Mylar instead of rubber, and can keep inflated for weeks. Cthulhu_ 7 years ago The type intended for keeping around / in a shop for longer time are, but the children's party type often are inflated on the spot. 5 replies →
Cthulhu_ 7 years ago The type intended for keeping around / in a shop for longer time are, but the children's party type often are inflated on the spot. 5 replies →
namibj 7 years ago Compare with aluminium coated foil. They don't deflate that fast. Keloo 7 years ago Or intestines of cattle.https://en.wikipedia.org/wiki/ZeppelinEarly Zeppelins used rubberised cotton for the gasbags, but most later craft used goldbeater's skin, made from the intestines of cattle
Keloo 7 years ago Or intestines of cattle.https://en.wikipedia.org/wiki/ZeppelinEarly Zeppelins used rubberised cotton for the gasbags, but most later craft used goldbeater's skin, made from the intestines of cattle
That’s just because rubber balloons are extremely porous, especially when stretched. They don’t hold other gases well either.
Helium balloons are commonly made out of Mylar instead of rubber, and can keep inflated for weeks.
The type intended for keeping around / in a shop for longer time are, but the children's party type often are inflated on the spot.
5 replies →
Air filled balloons also deflate over a couple days.
Compare with aluminium coated foil. They don't deflate that fast.
Or intestines of cattle.
https://en.wikipedia.org/wiki/Zeppelin
Early Zeppelins used rubberised cotton for the gasbags, but most later craft used goldbeater's skin, made from the intestines of cattle