airyairyquitecontrary:

pochowek:

1870s soda bottles looked like rpg potions

IIRC they were made like this (with a rounded/pointed bottom, so they had to be stored lying on their sides) because if they were able to stand upright, the carbon dioxide for the bubbles would all gather in the space under the cork and, because the cork couldn’t provide a perfect seal, would gradually escape leaving the soda flat. So until really airtight bottle caps could be developed, this was a workaround; the carbon dioxide would collect in a bubble under the upper side of the bottle but couldn’t escape through the glass, so the gas stayed in the soda and it remained fizzy when you turned the bottle right side up and opened it.