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Space station questions

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>How much fuel is needed every year to keep the ISS at it's orbital altitude due to decay?

From the station - none at least in the past six years. They re-boost with the engines on the supply ships, Soyuz and Verne,



The visiting vehicles, Shuttle, ATV (Verene, Kepler) have used their engines to boost the ISS orbit. The Zvesta Russian ISS module has thrusters which can be refueled by visiting Russian Progress ships. I believe that the Progress can also use its engine directly for reboost.

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Ooh! I know that one.
The ISS computers came pre-downloaded with a 10-year supply of porn. Interestingly, it was fully used up after just 19 months.



Wait, porn can be 'used up'? Well, how long before Earth supplies start to run out? And to think we're wasting our time worrying about oil!

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Ooh! I know that one.
The ISS computers came pre-downloaded with a 10-year supply of porn. Interestingly, it was fully used up after just 19 months.



Wait, porn can be 'used up'? Well, how long before Earth supplies start to run out? And to think we're wasting our time worrying about oil!



Shit, better question: Can you imagine the money shot possibilities in zero-G?

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Shit, better question: Can you imagine the money shot possibilities in zero-G?


You would have to aim...none of this trajectory stuff!
Aim for the eyes boys! :P
Life through good thoughts, good words, and good deeds is necessary to ensure happiness and to keep chaos at bay.

The only thing that falls from the sky is birdshit and fools!

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Shit, better question: Can you imagine the money shot possibilities in zero-G?


You would have to aim...none of this trajectory stuff!
Aim for the eyes boys! :P



Right, but you could have her on the ceiling 20 feet away and still hit it.



Please! 20ft! I bet on a good day I could do a solid 40! :)
Zero G porn could be cool! But I hear...that it's more of a let down. Two bodies bouncing off of each other in Zero G does not work well.

But on the + side ladies..your boobies will look extra perky when you are on your back!
Life through good thoughts, good words, and good deeds is necessary to ensure happiness and to keep chaos at bay.

The only thing that falls from the sky is birdshit and fools!

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Hum....ok!

OK say you fart in the space station......does the fart kind of just "hang there" and in theory could you create a "Wall-O-farts" to keep those non Americans out of the better appointed "American" parts of the station?
OR BETTER YET! Could you light it!




There's an easier way to keep other people out of the 'merkan part of the tin can ..... put #merkans in it:D:D:D:D:D:D:D:D

(.)Y(.)
Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome

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>How much fuel is needed every year to keep the ISS at it's orbital altitude due to decay?

From the station - none at least in the past six years. They re-boost with the engines on the supply ships, Soyuz and Verne,



The visiting vehicles, Shuttle, ATV (Verene, Kepler) have used their engines to boost the ISS orbit. The Zvesta Russian ISS module has thrusters which can be refueled by visiting Russian Progress ships. I believe that the Progress can also use its engine directly for reboost.



I see that the ISS orbit decays roughly 2km per month due to drag. This corresponds to roughly 1 m/s of deltaV. So not much is really required in term of increasing deltaV (ironically, this lowers the orbit speed relative to earth).

The thing is, the ISS weighs over 900k pounds. So it's a lot of mass that needs to be moved.


My wife is hotter than your wife.

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OK....engineers being "engineers" how do you keep those SOB's from "trying" to fix things on their own?

Do they set up some sort of robot with tazors that floats around the place and every time one of the engineers has a "bright idea" of how he can do something "better" or why "Lynix is better" is said engineer tazed and has his undies pulled clear over his head by the robot?



I don't think they give the astronauts on the space station enough off-the-schedule free time for them to be "fixing" things, and many of them are not engineers anyway. Pretty much all the work done with experiments and station maintenance is collaborative with folks on the ground that have video of what's going on up there.

The station's laptops I think are almost all running WindowsXP. Most of the mission utilities like their communications, scheduling, procedure, and location software were probably developed to run in Windows so it doesn't really make sense to change it. I'm not sure what OS the station's flight computers/power/life support systems use... probably VxWorks.

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it amazes me that none of these dorks have accidentally caused the station to self destruct because one of them had this bright idea of building their own dimmer switch or strobe light on the station?



Engineers don't make mistakes, they make "changes".
My reality and yours are quite different.
I think we're all Bozos on this bus.
Falcon5232, SCS8170, SCSA353, POPS9398, DS239

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Two bodies bouncing off of each other in Zero G does not work well.



This is where bondage comes into play.

Bungee cord belts, that's all i'm saying ;)
You are not now, nor will you ever be, good enough to not die in this sport (Sparky)
My Life ROCKS!
How's yours doing?

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Insulation. Is it an easy fix or a pain in the ass to make sure everything stays the right temp? Are there cold spots on the walls like in a jet airliner?


Well you know that is a very serious issue I'm sure!
Think about it, in Zero G there is no air density. So hot air will just "sit" and cold air will also just "sit"
right? after all there is no "up" nor "down"
so you can't rely on convection to regulate temperatures.
Life through good thoughts, good words, and good deeds is necessary to ensure happiness and to keep chaos at bay.

The only thing that falls from the sky is birdshit and fools!

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Insulation. Is it an easy fix or a pain in the ass to make sure everything stays the right temp? Are there cold spots on the walls like in a jet airliner?



If you've ever seen video on board the ISS you can hear the constant hum of ventilation fans that keep air moving through the complex. On the US segment it's all integral in the walls of the modules. In the Russian segment they actually have blowers and flexible ducts running between modules that are more apparent.

The very large gray arrays you see sticking out all over the outside of the station are radiators to dump excess heat overboard from all the electrical power that gets used. You'll note they're positioned somewhat perpendicular to the solar arrays because you don't want direct sun on them.

The ISS, and just about every other satellite, also use thermistors (temp sensors) and heaters positioned strategically around to keep things from freezing when they are in shadows. The heaters are not too dissimilar from the defroster in the back window of your car. On some satellites if you want to keep the temperature down you can put mylar/kapton thermal blankets or mirrors over things to keep them from absorbing as much radiation from the Sun.

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....... in Zero G there is no air density. So hot air will just "sit" and cold air will also just "sit"
right? after all there is no "up" nor "down"
so you can't rely on convection to regulate temperatures.



????!! I'm pretty sure that the cabin is pressurized ...if not to 1 atmosphere at least to some standard. IDK

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....... in Zero G there is no air density. So hot air will just "sit" and cold air will also just "sit"
right? after all there is no "up" nor "down"
so you can't rely on convection to regulate temperatures.



????!! I'm pretty sure that the cabin is pressurized ...if not to 1 atmosphere at least to some standard. IDK



Yeah but remember the reason hot air "floats" is because of air density and gravity. Lower density floats up.
So in theory your fart can have some serious hang time!

http://science.nasa.gov/science-news/science-at-nasa/2000/ast12may_1/
Life through good thoughts, good words, and good deeds is necessary to ensure happiness and to keep chaos at bay.

The only thing that falls from the sky is birdshit and fools!

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Thermal management has always been an issue in spaceflight. The Apollo module entered into the Passive Thermal Control roll on the way to and from the moon. The Space Shuttle orbits with its belly pointed to space because the heat shield tiles can absorb the sun's radiant heat better. Skylab 2's first objective was to fix the heat shield and solar array that had malfunctioned and not deployed, making it about 130 degrees inside. They managed to get a quick rigged parasol to block the sun, making the craft habitable.

The ISS actually has an active heat control system that courses coolant throughout it and sends it to radiators to cool it off. These things must be damned good to remove the heat energy from the sun and the heat generated from all the equipment inside the the thing.


My wife is hotter than your wife.

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