Talk:3240: Bottle

First P0st! 2A02:6B6F:E226:B00:70BF:8626:D782:45BE 18:40, 1 May 2026 (UTC)

So... is the meniscus drawn correctly, given the difference in shape of the front vs the back of the bottle??? BorQhue del Sol (talk) 18:54, 1 May 2026 (UTC)

Left-hand threads on bottle. Why? --PRR (talk) 18:49, 1 May 2026 (UTC)

I don't think those are threads on cap, they're wires around the cork. Barmar (talk) 19:19, 1 May 2026 (UTC)

I think it's a (perhaps reverse-threaded) screw-top bottle with no actual screw-top and a cork inserted instead. 81.179.199.253 21:36, 1 May 2026 (UTC)

this transcript is a work of art. raeb 18:54, 1 May 2026 (UTC)

Is part of the joke of the alt text the fact that he could easily fit into the bottle at his current age? 24.244.70.174 18:58, 1 May 2026 (UTC)

If he sailed in when he was very young, does that mean the ship grew up with beret guy? Commercialegg (talk) 18:59, 1 May 2026 (UTC)

That does seem to be what he's implying. When he sailed in, the boat must have been small enough to get through the bottleneck. Barmar (talk) 19:15, 1 May 2026 (UTC)

It's a reference to Williams pears, which do grow inside a bottle like that.37.59.41.98 19:41, 1 May 2026 (UTC)

Could it be that the boat inside the bottle is the one talking, not Beret Guy? SovereignFinn

It may be worth noting that Beret Guy's boat's sail visibly isn't getting any wind, which of course makes sense. Also, I like that Ponytail's boat has a gaff rig. 63.229.212.46 20:33, 1 May 2026 (UTC)

I see a totally different context and joke here: the water level in the bottle is lower than the water level outside. (Which requires a bit of physics thinking to figure out why this would be so.) At first intuitive glance, the water levels should be the same, hence, as the title text says "... seems impossible ...". Then the title text offers a (wrong, but intuitive) explanation for the different water levels: he entered the bottle at very young age when he was lighter (equal levels). Now as an adult he is heavier, thus the whole bottle is heavier and hence it is dipping deeper into the outer water (creating different levels). 31.16.254.255 20:38, 1 May 2026 (UTC)

I think it's sort of what would happen with a glass bottle. Glass is far more dense than water. If you part-filled a bottle (sideways, supported) so that it is level with the water it is sitting in and then plug it and release it, the air-filled bottle would then sit lower in the water than its previously established level.

i.e. the trapped water itself is neutral, versus the volume of external water that it displaces. The bottle-material that is below that level is denser than the water it directly displaces, so is negatively buoyant (and the above-the-water glass is less buoyant than the external air). It needs to sink enough that the internal air is also contributing to the displacement of the whole sealed bottle enough to equalise the whole thing.

And, the marvelous thing is that the bottled boat itself is completely neutral. As it's floating at a level that is neutrally buoyant across the (internal) water+air interface, so long as it is floating, thus the whole container weighs (as well as displaces) the same, for any given internal water-level. (i.e. how boat lifts operate... two 'troughs' that essentially weight the same regardless of whether they have a boat in them, that can be hauled up and down essentially perfectly counterbalanced by the paired trough going in the opposite direction. Which I still think is rather clever.) 81.179.199.253 21:36, 1 May 2026 (UTC)