Quote:
Originally Posted by Christ
Vacuum can only truly occur in a sealed container which does not contain atmosphere, which means that since an intake manifold constantly has some amount of air in it, there is no actual vacuum, only a reduction in ambient pressure of the volume of air present.
|
How exactly are you defining "vacuum", by the technical definition - space absent of matter? The term seems to be tossed around loosely these days. A perfect vacuum isn't possible on earth, questionable even in deep space. Maybe I have been wrong for using the term "vacuum" for any absolute pressure less than one atmosphere.