You Can't Vacuum the Moon
- There is no such thing as the pulling force of suction!!!!
- Gases exert a pressure through the collective impacts of their atoms on the surface of an object or container. Because of this, pressure is always a positive value. In other words, gasses can only push on things, never pull on things. The lowest pressure achievable occurs when there are no atoms around, such as in outer space. (Actually, there are some atoms in outer space, but they are so few and far between that the pressure is almost zero there.)
- Any time something seems to be pulled by suction, the actual cause must be explained by using pushing forces of gasses. Suction is better defined as a net pushing force in a particular direction due to the differences in two gas pressures.