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To: slowmo who wrote (87012)	8/11/2018 8:23:37 PM
From: HerbVic	3 Recommendations Recommended By FJB Investor Clouseau Stock Puppy Read Replies (1) \| Respond to of 458172

It doesn't work that way. Zero, by any metric is 0.000000000… and on into infinity. The difference between vacuum and sea level is 14.7 psi. The measure is of the surface pressure in all directions from inside the container across the retaining surface. From sea level to the surface of the moon, the difference is 14.7 pounds per square inch. Yes, a space suit can explode, but that would be a catastrophic failure of a design that only need hold back 14.7 psi. A car tire holds back around 32 psi. (although there are tires designed for much more and much less) My training and career was in metrology. I have used vacuum pumps to pull a vacuum on instrumentation many times. With each cycle of the pump, a volume of air the size of the piston chamber is pulled from the container being vacuumed. As the pressure approaches zero, each cycle of the pump has less effect due to the amount of air in the piston chamber being less. So it really never quite gets to zero pressure. There will always be a tiny amount of air left. The same holds for the vacuum of space. The higher you go, the fewer air molecules per cubic inch. Even if you go outside our solar system, beyond Pluto. It never gets to absolute zero pressure. There is always some small amount of positive pressure above absolute zero. Who knows how much? Probably something like 0.00000314159 psi, which is minuscule. The upshot is, if scientists can make a tire, which rolls over rugged landscapes and takes an enormous amount of abuse over its lifetime, hold 32 psi more pressure than the 14.7 psi of absolute pressure in its surroundings, then they can make a body suit that holds 14.7 psi more pressure than the vacuum of space.