I was wondering what would happen if you tried to pull back on the plunger of an empty syringe in space? In reality, it would probably shatter due to cold or some sort of pressure differential inside the tube but besides this, if you managed to get a working syringe into the vaccum of space, what happens when you pull the plunger?
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The plunger would pull back, there would be no pressure difference between the inside and outside.
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Depends what you stuck the needle into.
But if stuck in nothing the piston would slide back without resistance.
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But if stuck in nothing the piston would slide back without resistance.
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It won't "suck" anything. It would move back but no pressure will change in the syringe. This is because Space is a vacuum.