09-25-2020, 03:49 AM
that is correct getting the air out is super hard on many cars and vacuum pump on cap adapter makes this 10x more easy.
they do the same thing on submarines too, and is 100x worse not using vacuum.
vacuum means zero bar,
the air pressure on earth is 14psi or 1 bar.
0 bar is vacuum and on the moon is crazy low vacuum,
vacuum always means atmosphere pressure near zero.
anything less that ambient air pressure can be called vacuum,,
the joke is , there is no vacuum the earth sucks.
they do the same thing on submarines too, and is 100x worse not using vacuum.
vacuum means zero bar,
the air pressure on earth is 14psi or 1 bar.
0 bar is vacuum and on the moon is crazy low vacuum,
vacuum always means atmosphere pressure near zero.
anything less that ambient air pressure can be called vacuum,,
the joke is , there is no vacuum the earth sucks.
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