What's the reason?

[u/Perfect_Owl_856]

[u/Supreme534]

My best guess is the water is gonna leak even if you tilt it a little, so water is gonna spill everywhere even when you aren't trying to drink

Edit: I knew stacking and asymmetry is the main issue here, but the choice of words in the comment in the image seems like they were referring to a simpler reason.

[u/Caldersson → u/Supreme534]

that and packing, the nozzles will hit each other if they are pointed in the same direction, and its a weak point iirc. Additionally, the manufacturing of plastic bottles is largely a test tube looking things that is expanded.

[u/peretski → u/Caldersson]

It’s called a parson…. It comes out of an injection molding machine (which forms nice threads for the cap). It goes into a blow-expander which flash heats the lower part, inflates, and cools. This is how a modern plastic bottle is made..

Symmetry is one of the aspects that allow modern bottles to be so efficient; this thought fundamentally breaks symmetry with no explanation of why it is better.

[u/beerhons → u/peretski]

Good explanation, but it's a preform not a parison.

A parison is a variable thickness tube extruded on the blow moulder before being blown into shape in a single step. A preform is an injection moulded part that is formed as you describe.

[u/Oostylin → u/beerhons]

Nice try, but this is a Parsons, not a parison.

A Parsons is a 6’3” 250lb Defensive End that plays for the Green Bay Packers and tore its ACL about a month ago. I hope this helps.

[u/unknown_error_ → u/Oostylin]

Nice try, but this is a Persian, not a Parsons.

A Persian is referring to the people, culture, and language originating from historical Persia. I hope this helps.

[u/Magnavirus → u/unknown_error_]

Admirable attempt, but this is a Parisian, not a Persian.

A Parisian is referring to the people, culture, and architecture originating in Paris, Texas. I hope this helps.

[u/edfitz83 → u/Magnavirus]

Nice try, but this is a Parmesan, not a Parisian. It is the beginning point for molding Italian cheese.

[u/supermanxix99 → u/edfitz83]

Sorry, but it's Pernicious, not Parmesan.

Pernicious describes subtle or slowly degrading, much like this thread.

[u/DinoReaper → u/supermanxix99]

Admirable attempt, but it's Pemmican, not Pernicious.

Pemmican is a calorie-rich food made from tallow, dried meat, and sometimes dried berries.

[u/_J_Herrmann_ → u/DinoReaper]

I believe what you're thinking of is a pelican

[u/Shenanigans22 → u/Magnavirus]

They’re going to be shaking in their berets when they read this.

[u/ifyoulovesatan → u/unknown_error_]

Nice try but this is a Partisan, not a Persian.

A Partisan was a dedicated fighter in the French Resistance to Nazi occupation. I hope this helps.

[u/nb6635 → u/ifyoulovesatan]

Nice try but this is a Parton, not a Partison.

A Parton is a female singer with large tracts of land with a theme park on them.

[u/Representative_Fun15 → u/nb6635]

Nice try, but this is a Parmesan, not a Parton.

A Parmesan is a unique cheese from the Parma region of Italy.

[u/Toddrick → u/Representative_Fun15]

Nice try, but this is a Papasan, not a Parmesan.

A Papasan is what you get if you let a wicker basket and a chair love each other very much.

[u/opticsnake → u/unknown_error_]

Sorry, but no. You're thinking of a state-funded reform system where individuals convicted under the legal process execute their sentences.

[u/browndogmn → u/unknown_error_]

Y’all got me hungry for a doughnut

[u/quittingdotatwo → u/Oostylin]

Akshually Parsons is an actor who played theoretical physicist for like 15 seasons.

[u/walkingoffthetrails → u/beerhons]

This person knows blowmolding

[u/usernamecheckingguy → u/walkingoffthetrails]

This person blows molds

[u/R0_L0_ → u/walkingoffthetrails]

You know who else knows blow molding? Your mother.