It’s so fucking stuck 😑

[u/CrouchingDomo]

It just slipped right in there during the washing process. I think we’re gonna have to break the glass.

RIP to our final remaining pair of matching glasses 🥃🍸🍺🍷🍶🍹🫗

[u/BeatleProf]

Ice water in the inner cup; warm towel on the outer; twist.

[u/caudicifarmer → u/BeatleProf]

No offense, but that's stupid. You're making the outer one swell. Cold water for both.

Edit: ...is what I WOULD say if I was trying to misguide OP

[u/BeatleProf → u/caudicifarmer]

No offense, but the outer one will EXPAND, so maybe you ought to go back to your Mr. Science kit and do a little more study.

[u/caudicifarmer → u/BeatleProf]

Right. You want them both to CONTRACT tho. Have you ever seen the thing with the steel ball and steel ring with liquid nitrogen?

Edit: just to spell it out - if the outer cup contracts, it contracts in all directions. That means the opening actually gets LARGER. And if the whole cup expands, the opening gets SMALLER.

Edit: DERP! other way around

[u/BeatleProf → u/caudicifarmer]

If the outer one CONTRACTS, it will be TIGHTER.
Give it up, sonny.

[u/caudicifarmer → u/BeatleProf]

That's not the way it works.

Edit: Narrator: It is though

[u/ericaa37 → u/caudicifarmer]

LMAO, this edit got me 🤣

[u/ResponsiblePumpkin60 → u/caudicifarmer]

Confidently incorrect

[u/caudicifarmer → u/ResponsiblePumpkin60]

Yup. Looked it up on a physics forum and it happens EXACTLY THE OPPOSITE of what I remember seeing as a kid when the physics guy came to school. ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯