Tuesday, December 1, 2009

Space swimming pool molecular gravity strength question?

Food for thought.



Let's say we have an olympic sized swimming pool volume of water in space and it's in a air filled room just like pools on earth. Only difference is no gravity in space so you will have a shape of some sort in space different than on earth but a large volume of water none the less.



Now let's enter the pool and get totally submerged just like on earth. We have a swim suit on but no air other than how long we can hold our breath so no space suit or scuba tanks. So now that we are in/under water could we just move our hands around and create an air pocket in the pool of water to breath in? our is this even possible to do? Sort of like an air bubble in jello.



Just wondering what you think.



I think there must be a real way to answer the question with physics and math but don't know how to prove it.



Thanks



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Well ... you need to get the air from somewhere. So no.



Water in space will tend to form a sphere, the largest volume to smallest surface area, due to surface tension. This also implies that any bubbles that would exist inside the sphere of water would tend to move towards the surface of the water and "burst".



Heres a cool video on roughly this topic:



http://www.youtube.com/watch?v=ZyTwLAW-Z...



Space swimming pool molecular gravity strength question?myspace generators myspace.com



You would have to make a "hole" to the outside of the water.I think the water would be too unstable and the hole would collapse before you got a breath of air. (to the other answerers...he said it was in an air filled room...but good point...it would have to be heated)
well ,, no air in space - so if you break up the water you still pooched -- and creating a pocket in the water will not do anything either cause you can not make air out of nothing,. but that's assuming you and the water didn't freeze into a huge ice cube in a few minuets anyhoo :)
Well, if the water and air are in an enclosure that has mass, then the water and air will be drawn to the enclosure. But, because the water has a greater mass than the air, it will have a greater attraction to the walls. Therefore, theoretically, the water would "part" around an air bubble in the center of the room. But, no, if you would move your hands around in the water, the water would become displaced, but there would be no air to fill the void, because there wouldn't be a void, just a pressure differential. I hope that answers your question.
Item 1.) In space a huge volume of water would fairly rapidly become a solid mass of ice because the temperature in space is 3 Degrees Kelvin...something like Minus 376 Degrees Fahrenheit if my math is correct. you failed to mention how far away from the nearest planet your huge pool of water was located, and at what speed you were flying, so I am unable to determine what kind of gravitational situation you might have. No mention was made of the spin characteristics of your space ship on which the pool of water was located...so I have the same problem again...



Water in space turns into ice crystals. Even gases turn to liquids and freeze into ice in space...So I don't think you will ever reach the ideal situation where you might take a "swim." And, worst of all, there is no AIR PRESSURE in space. So, any attempt to venture out there would result in your own body exploding due to the internal 14 PSI Pressure attempting to equalize with the Zero PSI pressure outside.



sorry..



Regards,



Zah
If the containment of the water is large enough, it will form into a spherical blob. You could dive into it and swim back to the surface, where your momentum would be greater than the surface tension and you would continue on out, bringing lots of droplets out with you. You would not be able to breathe or hold your breath underwater any better than if it was on earth.



If the container for the water was less than twice the volume of the water, it would eventually stick to the walls of the container if agitated enough. This has been demonstrated with water in a bottle. It formed around the sides with a big bubble in the middle. The bubble was difficult to dislodge even with significant agitation. But if you could keep the blob of water at the center, not allowing contact with the walls, it would stay in a blob.

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