The problem with beer:
That it is within a 'bottle', i.e. a boundary-less compact 2-manifold homeomorphic to the sphere. Since beer bottles are not (usually) pathological or "wild" spheres, but smooth manifolds, they separate 3-space into two non-communicating regions: inside, containing beer, and outside, containing you. This state must not remain.
It took me a few boundry-releases to re-instigate the thoughtitory necissisaries to replificate this wordage... so here goes...
... I agree.
good to have you back audio, this forum has been D.E.A.D.
If you rotate the bottle as you drink it empties faster. The limiting factor is air passage through the neck of the bottle and by spinning the bottle while drinking, the air will pass through the middle of the beer spinning out of the bottle. As you probably have guessed, yes there is an optimal rotation speed where the flow of the liquid out of the bottle is maximized with the constraint that air pressure equilibrium is maintained. The longer and narrower the opening of the bottle is, the greater the rotational velocity must be to compensate. Think before you drink!