It's not a vacuum.
Yes it is. I'm sure Dumbo posts this sort of rubbish just to stir the pot LOL. Nobody could be this scientifically unaware of basic principles surely. Or could they?
It's a low pressure area with the use of mercury as a dense liquid metal that can keep that low pressure constant that allows the change in air pressure to raise it against that low pressure without much resistance, meaning the mercury can squash the more expanded molecules inside that area quite easily...enough to give us readings
Again, this is nothing more than nonsensical gibberish. It doesn't even qualify as "pseudoscience"—and even the most ardent flat earthers will agree with this.
That's all it is.
LOL... this sort of comment is typical of how simply Dumbo (allegedly) invalidates centuries-worth of complicated scientific research and theories by producing some bizarre alternative from his dream-factory.
No true vacuum is possible on Earth and anyone who thinks that the void left in that barometer is simply just free molecules/matter just bobbing about, will never understand the reality of it all.
It's also hard to believe that Dumbo is incapable of comprehending even the simple principles of the mercury barometer—invented 400 years ago—and used to this day.
I'm tempted to draw a diagram but it'll take too long and will be discarded as usual...
This of course is Dumbo's standard "reasoning" for never drawing any diagrams; he 's too busy (despite posting dozens of comments every day LOL) or his diagram will be laughed out of the debate. The latter indicates that he lacks the courage of his convictions, which is a more than frequent occurrence whenever he's backed into a corner on these forums. Earlier this year, he provided a rough sketch of his proposal for a working flat earth map, and which he promised to post in its fully developed form later on. Did that ever happen? Of course not—and it never will. The guy is so full of hot air he could go into the sightseeing balloons tourist industry.
...so it's about using your mind to think.
Which is an odd thing to say, coming as it does from somebody who never follows their own advice.