“As liquid exits a can, it leaves behind a vacuum—a totally empty space in which you won’t find anything, not even air molecules.”
I’m not sure that’s quite right. As the liquid exits the can, the air in the can must expand to fill the extra space, and the pressure in the can is reduced to something lower than atmospheric pressure....and this creates the effect. Its a partial vacuum.
The total vacuum the reporter describes would suck your lips right off.
Sounds like the perfect definition of a politician:
“As words exit the man, it leaves behind a vacuum—a totally empty space in which you won’t find anything, not even air molecules.”............
The pressure over the liquid beer must be greater than or equal to the vapor pressure of beer.
There are a few over-simplifications in the article. Your body is “used to” the atmospheric pressure? the junction of your body and the atmosphere is equalized at 14 lbs/sq in. He makes it sound like you just jumped into a swimming pool, and you’re cold at first.