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Surviving in Space Without a Spacesuit
Geoffrey writes "The recent movie Sunshine features a scene (echoing the famous scene in 2001: a Space Odyssey) in which two astronauts have to cross from one ship to another without spacesuits. But, can you survive in space without a spacesuit?
Morgan Smith, writing in Slate, asks whether this is realistic, and concludes: "Yes, for a very short time.""
Well! That settles that, then.
In the episode where they were experimenting with a captured ship, T'lk and O'Neill were flung out to Jupiter and left without a way to get home.
Carter's dad, herself and Daniel are able to rescue them but the two have to eject from their ship and float in space for a few seconds before the ring transport can be used.
I do believe that the two had a spacesuit of some type on but not one that was designed for space. More of a general cover suit.
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"Oh boy! Are we going to try something dangerous?"
That is good to know.
The conscensus seems to be consciousness for 10-15 seconds, no serious injury for 60 seconds to 2 minutes.
SJW: Someone who has run out of real oppression, and has to fake it.
Of course, on Earth, you could hold your breath for several minutes without passing out. But that's not going to help in a vacuum. In fact, attempting to hold your breath is a sure way to a quick death.
An old-timer with old-timey ideas.
Is it just me or does that Sunshine page prominently feature separate videos to show every single character dying? Is this some kind of gimmick?
//confused
Usually I don't want to know how the movie ends until, you know... the end of the movie.
The Chief and his wife also survived in open space for about 5-10 seconds on Battlestar Galactica, Season 3, "A day in the life".
-Eddie
But the odds of being picked up by a passing space ship in that time are two to the power of 2079460347 to one against.
Technoli
Well in 2001 Dave wasn't in open space. He put his ship right next to the hanger doors creating as much as an airtight seal he could then he opened the door and all the air left his ship and filled the hanger area giving some pressure for him so his head doesn't explode but the air was rapidly thinning because it wasn't completly air tight so he only had a couple of seconds to get in. He wasn't in openspace but a low pressure envrioment, with only a few seconds of useful time.
If something is so important that you feel the need to post it on the internet... It probably isn't that important.
This movie featured someone who was flung into space briefly without a suit and survived, however he was stuck in intensive care the remainder of the film.
You can't forget about the extreme cold. Space is a very, very cold place. One might think frostbite could be an issue.
The decompression effects may be reduced/delayed if the space station uses a 100% oxygen atmosphere at a low pressure, then the pressure delta between what your body is equalized to and the vacuum is reduced so the trauma is delayed a bit.
The ISS uses normal sea-level pressure, but I believe some of the spacecraft used for the moon shots used the low-pressure environment.
The Space Activity Suit is basically the same as jumping out of an airlock, but with pressure protection for your head only. As they say in the wikipedia article - "skin itself is actually quite airtight"
There was at least one sci-fi story back years ago where this jumping out into space thing was done. So it is not a new plot line.
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two presidential candidates survived in space for a few moments after they were jettison from an alien space craft in a Halloween episode. I think. My memory is a bit fuzzy on this one.
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I liked the way they portrayed the issue in Event Horizon; took me a while to be able to watch Sam Neill in any other film without getting the creeps after that one. They had the guy expel all the air in his lungs that he could, he survived outside for a few seconds, got frozen, and I want to say his eyes didn't survive the vacum, don't remember too well.
An I.T. motto in the hands of an idiot is a dangerous thing...
Maybe, but once they retrieve you, if your clothing needs to be removed for any reason (e.g. medical), you're going to have shrinkage like you just did the polar bear plunge... and all in front of your unreasonably hot female costar. :(
The Schwartz space ain't from Spaceballs.
It would take nearly forever for you to cool off that much, you would explode due to pressure differential long before you would cool down, as any cooling would be due to releasing radiant heat. There is neither conductive nor convective heat loss as there is nothing cooler than you there, as there is nothing but you.
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I just expelled all the air out of my lungs as best as I could and it was exactly 24 seconds before it was physically impossible to hold my breath... I felt a weird kind of giddiness -almost a mild 'hit'. Sort of like when you smoke a strong cigar and inhale.
Surely, astronauts ought to have better lung capacity than yours truly?
Cheers!
Atheist: Buddhist in a Prius
But there is almost nothing to conduct the heat. You can survive a long time in 40F degree air. Now just in 40F degree water and see how long it takes before hypothermia sets in. The difference is conduction. There would be (almost) nothing to carry away your body heat in space.
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You can't forget about the extreme cold. Space is a very, very cold place. One might think frostbite could be an issue.
It's not quite that easy. Space is not cold (nor warm). Things in space may be warm or cold. How do you lose heat in space? Well, there's no convection because there's no air. You would only lose heat via radiation, a much slower process. For the purposes of this discussion, I think you could ignore temperature, as you would perish well before a drop in heat got ya...
But with space being really big and all, the chances of being picked up within that time are 2^2,079,460,347 to one against.
I can't believe Sunshine missed the real danger as pointed out in the article: "space hickies"
Clearly, this would be the undoing of any true Sci-Fi hero. And the fans already know the dangers regular earth hickies:
Mortgages, children, honey-do's and loss of video game time w/"the guys." What horrors must await victims of "space hickies"?
One last thing: Sometimes I wonder; "Is that someone's signature? Or do they type that at the end of each post?"
the effect of zero pressure is your blood boils at subzero temperature.
"In fact, attempting to hold your breath is a sure way to a quick death."
So are the exploding nuts. And if you're a woman with implants...
we should have a new mod: -1 RTFA
After he came to, they asked the tech what the last thing he remembered was. He told them the last thing he remembered before blacking out was the saliva on his tongue boiling away (due to the extremely low pressure lowering the boiling point of the saliva)
To make laws that man cannot, and will not obey, serves to bring all law into contempt.
--E.C. Stanton
Exactly. The pressure differential is what will more likely kill you, though even that will take time, given the tension of cell membranes. Combine the temperature and pressure differential and you're looking at a short window of maybe 30 - 60 seconds where you get by without major physical damage and perhaps 1 - 2 minutes with some sort of major but survivable damage. And don't forget long term effects, as you will be exposed to intense solar radiation with only minimal protection.
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So did Farscape ... and if it happened on Farscape, well its 100% believable.
Actually no, frostbite isn't an issue. In vacuum, there is no heat transfer through convection. The only way to lose heat is through thermal radiation.
Convection is what will freeze you when you fall in ice-cold water.
Radiation is what will cool the beer you put in the reflective satellite dish at night.
In fact, human space modules (such as the ISS, but the ISS has to cope with atmospheric drag too, IIRC), have trouble dealing with excess heat, and have to use large surfaces to maximize radiation output
Misleading titles? Inflammatory blurbs? Keep in mind that Slashdot is a tabloid.
... by Geoffrey A. Landis, "I first starting putting together this information as a list of references back in the late 80s, when I was a postdoc, and then posted much of it as a contribution to the sci.space FAQ (along with contributions from several others, most notably Henry Spencer). Then when the FAQ was offline for an extended period, but people kept asking the same questions, I put this page online as a web page to which I could refer questions. Since then a number of other sources of information have popped up on the web (many of them quoting from this page), but I've tried to keep this up to date.".
Quote: "Landis holds undergraduate degrees in physics and electrical engineering from MIT and a Ph.D. in solid-state physics from Brown University. He works for the NASA John Glenn Research Center, where he does research on Mars missions, solar energy[1], and advanced concepts for interstellar propulsion. He holds seven patents [2], and has published more than 300 scientific papers[3] in the fields of astronautics and photovoltaics. He was a member of the Rover team on the Mars Pathfinder mission, and is a member of the science team on the 2003 Mars Exploration Rovers (MER) mission. In 2005-2006, he was the Ronald E. McNair Visiting Professor of Astronautics at MIT."
How history repeats itself.
CC.
TaijiQuan (Huang, 5 loosenings)
Would You Freeze?
No.
A couple of recent Hollywood films showed people instantly freezing solid when exposed to vacuum. In one of these, the scientist character mentioned that the temperature was "minus 273"-- that is, absolute zero.
But in a practical sense, space doesn't really have a temperature-- you can't measure a temperature on a vacuum, something that isn't there. The residual molecules that do exist aren't enough to have much of any effect. Space isn't "cold," it isn't "hot", it really isn't anything.
What space is, though, is a very good insulator. (In fact, vacuum is the secret behind thermos bottles.) Astronauts tend to have more problem with overheating than keeping warm.
If you were exposed to space without a spacesuit, your skin would most feel slightly cool, due to water evaporating off you skin, leading to a small amount of evaporative cooling. But you wouldn't freeze solid!
Joachim
People don't write Manifestos any more -- what's going on in this world? [Frank Zappa]
The term for the capillary damage is "vacuum rose"
There was a series of novels back in the 90s about near-future cis-lunar space development. The blue-collar types had a 'vacuum-breather's club' for people who had survived just such events where they had to transfer from a damaged module to another without a suit.
What was the temperature when that NASA tech was exposed? I would imagine in space the extreme temperature would have adverse effects on the eyes and skin.
Remember what they said though - don't hold your breath, as your lungs would rupture when you hit vacuum.
No, you would also lose heat as the water on the surface of your body boiled away. In fact, I'd guess you would lose a lot of heat very quickly through your lungs.
People are saying that skin is fairly airtight. So what if you somehow found yourself in space without any kind of suit, and you had an open wound or deep cut on your arm or something, what would the effect be?
Could someone tell me why the blood should not boil immediately due to zero atmospheric pressure but having essentially body temperature? I could imagine this might be an issue, at least for veins close to the skin, or in areas less protected by "dead" skin, like eyes and mouth.
We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
In 'Outland' (http://www.imdb.com/title/tt0082869/) de-pressurization meant instant death through rapid expansion/explosion. Movies, eh?
Finally, someone else who realizes that space has very little matter! Don't you think the Human body would generate more heat than it could get rid of?
What day is it? Could you please tell me?
It would take nearly forever for you to cool off that much, you would explode due to pressure differential
No, you would not. Standard air pressure is about 15 PSI. Thus, being in vacuum can never apply more than 15 PSI to your internal organs, unless you came from a substantially pressurized environment.
SCUBA divers experience sudden pressure changes in the realm of 15 PSI all the time. They don't "explode," they just get the bends. It's something you want to avoid, definitely, but you aren't going to blow your guts just because the ambient pressure drops by 15 PSI.
Not new to anime either. In the episode Heavy Metal Queen of Cowboy Bebop; Spike performed his "floating act" ejecting from his ship and using gun shots to get him back to V.T.'s ship.
Nevermore.
A long time ago I took a pressure chamber ride at NASA to 27,000 ft. I lasted about 15 sec until uselessness (the crew master didn't let us go all the way to LOC), and 27,000 is not a particularly extreme altitude. Generally, 50,000 ft is considered the altitude at which the partial pressure of oxygen is no longer adequate to maintain consciousness. You can survive up to about 80,000 if you "pressure breathe", i.e have a rig that forces oxygen into your lungs at a lightly higher pressure than ambient, but not enough to bust your lungs.
And as TFA pointed out you will embolize if you hold your breath above that more or less 80,000 ft altitude.
So if the acronum YMMV ever applies, it's here.
Give a man a fish and you have fed him for today. Teach a man to fish, and he'll say "WHERE'S MY FISH, YOU IDIOT?"
Somehow maybe Virgin will be making a ride soon......
Any nerd should know by now that spectacular explosive decompression of the human body in a vacuum is a Hollywood special effect that has nothing do with reality. If you didn't know that
Like mentioned many times already, the cold is not the issue. It is the lack of pressure. So, wouldn't it be like using one of those vacuum pump devices? If so, clothing removal in front of your unreasonably hot female costar could be just what the doctor ordered, if she doesn't mind a bit of discoloration...
*MAYBE A SPOILER*
the movie was still inaccurate because in a part of the movie, a guy gets sucked into space and turns to ice in less than 30 seconds.
Don't trust a bull's horn, a doberman's tooth, a runaway horse or me.
If it's as cold as I can't imagine it could be, then Don't they know about shrinkage?
Honestly how many male astronauts would put themselves through that?
Life takes interesting turns, but the most interest is when you're off the beaten path.
One of the Planetary Federation ships is badly damaged when the Earth Government in the 'Fortress' on the Moon fire at it with a bolt of liquid metal. The ship is heading out of the solar system but they rendezvous with a passenger liner and a large number of people are ferried across into the liners cargo holds without suits. They are all made to take breathing exercises to flush their blood with oxygen and then they empty their lungs when the doors open so they are not ruptured. Some get sunburnt and one panics and is left outside.
We've known this since 1965 and the topic has been discussed on /. before, so:
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Combustion reaction kinetics aren't very pressure sensitive. Oxidant density is not controlling.
This would make for classic Mythbusters material.
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From TFA:
"One NASA test subject who survived a 1965 accident in which he was exposed to near-vacuum conditions felt the saliva on his tongue begin to boil before he lost consciousness after 14 seconds"
sounds like after a few seconds in empty space, things get painful and gross!
stuff |
First piece of BS. No, your body doesn't use up the oxygen left in the blood in 15 seconds. In a vacuum (or, more broadly speaking, in any condition where the partial pressure of oxygen is lower in the lungs than in the blood), the gas exchange in the lungs is reversed - your blood will actually become deoxygenated while passing through your lungs. After 15 seconds, your brain will get hit by a blood supply that is pretty much completely deoxygenated - it's lights out then.
And then the part about air embolism - the pressure difference from going from the inside of a spacecraft (which is most likely pressurized at less than one atmosphere) to a vacuum is much lower than the pressure difference experienced by a scuba diver surfacing from a depth of, say, just 12 meters. "Vacuum" might sound nasty, but it's the pressure difference that is the problem here.
Explosive
Evacuation
Bowels.
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The vapor (boiling) point of water is a variable determined by pressure, which the experiment that the GGGP explained dealt with (a vacuum).
..hear your frozen dick fall off.
[The author of this post understands the negligible effects of loss of heat solely through radiation in extremely short time periods, but encourages the reader to take a break and try to laugh].
No text.
Wouldn't water in your body slowly boil out? Lower pressure lowers water boiling point. Cell membranes would keep it for a while, but eventually if it has +273K, in vacuum it would boil.
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But what does the Hitchhiler's Guide say? I can't find a single thing on the internet. Googling the phrase ["The Hitchhiker's Guide to the Galaxy" "vacuum of space"] returns no results, neither does a Google Books search. Wikipedia's entry on HHGTTG says nothing about the subject, despite the fact that Ford and Arthur are picked up by the Heart of Gold (as a pair of chairs) after being thrown out of the Vogon ship.
If I was at home I'd just look it up in the book itself. Unfortunately I wouldn't be able to make this post as I haven't paid my internet bill. Damned whores get all my money these days (especially the whores at British Petroleum).
I'm surpeised that none of my fellow nerds have consulted the Guide, as it is in fact the most definitive giude to anything, surpassing even the Encyclopedia Galactica (which was, of course, invented by Isaac Asimov, who was never personally thrown out of a Vogon ship).
Bugger. Someone please look it up? Kthx.
-mcgrew
Ok, so you're saying that space is slightly cool, not too bad, and it would take a long time for your temperature to drop.
...so.... why do astronauts wear those big clunky gloves? If it's not much cooler than my fridge at home, why not just go out there with bare hands so they can fiddle around a lot better? I heard that fatigue is a real problem and the gloves are clumsy when they are working round the ISS. Why not seal the suit at the wrists with a stretchy rubber seal and let them out there with bare hands?
Excuse the ignorance (not much of a scientist)
Or if the issue is that some of the surfaces out there are cold because they've been out there so long and we don't want astronauts getting frostbite touching metal bits of the space station, why not just give them a pair of skinny skiing gloves? Perhaps even a set of stretchy latex inners (like you get for a few cents for working on your car, or as a surgeon) if there's an issue with keeping the hands under pressure.
Seriously, I don't get it. I thought the reason for clunky astronaut gloves was that it's a superharsh environment. If it is just a slightly cold place, like the inside of my fridge, then why not latex inner gloves and a set of gortex outers from the ski shop?
Keep the rest of the body all cosy, in a breathable atmosphere, but surely it's ok for there to be no oxygen getting to the outside of my hands?
Sorry for ignorance, inform me, folks...
Data jumped from the Enterprise to the Predator without a suit (or anything other than momentum to carry him), but of course being an android he could probably better sustain the lack of air pressure, oxygen and severe UV exposure no problem. His big problem was the self-propulsion.
</big_nerd_moment>
In both the movie and the book "The Hitchhiker's Guide to the Galaxy" (and possibly some other incarnations, too), when Ford and Arthur get ejected out of the air lock of the Vogon ship, they are able to survive long enough for the Heart of Gold to pick them up by holding their breath in.
:P
The Guide also mentions that the chances of rescue are highly improbable.
(And yes, I know, some may find that the Guide is not necessarily a reliable resource about the workings of the Universe.)
Absolutely ridiculous. >.>
Actually space does have a temperature. Ever hear of cosmic background radiation? the entire universe, that includes empty space radiates microwaves as a 2.725 Kelvin black body. Furthermore space is full of 'virtual particles' better known as Zero-point energy, this is due to the ground state energy of space is non-zero; this allows for the Casimir Effect and Hawking Radiation.
If someone is passing you on the right, you are an asshole for driving in the wrong lane.
There's a nice article that states roughly 2/3 of heat loss from humans is radiative in cool, still air. Stefan-Boltzmann law gives about 95W radiative heat loss, assuming 2 square meters of 28 C skin in 20 C surroundings. That'd make total heat loss something like 150 W.
Now, go outside when it's cold like -20 C, and the radiative heat loss, with above approximations, hits around 467 W.
If your surroundings are spacewarm of maybe 2 K, the radiative heat loss is around 932 W. That's about twice as much radiative loss as in -20 C atmosphere, where you'd have to add some, maybe 230, Watts for conductive heat loss.
Based on this very crude calculation I'd say that vacuum in space *is* cold, and about as cold as outside on Earth in -20 C and few clothes. Now that's not very cold, but you'd definitely still freeze before dying of thirst :).
The temperature of what?
It would take nearly forever for you to cool off that much
Convection and conduction will be negligible. Net loss by radiation in outer space will be on the order of 400-500W. That will drop the average body temperature about 5 C / hr. Your skin will be in bad shape pretty quickly, but it will take a day or so to turn you into a popsicle all the way through.
The joker here is evaporative cooling. Depending on the moisture on/in your skin/mouth/lungs, the human body cooling rates can sustain 10-20KW in a total vacuum. This is fatal within minutes.
The secret to staying warmer when you find yourself naked in space is to keep calm. You don't want to be sweating.
It's all gimmick. I'll take 2001 over this ultraviolent crap any day.
I saw the website and thought "Cool, a low-budget independent sci-fi movie-- the Sun is dying, and this crew needs to try & re-ignite the sun." There aren't many independent sci-fi movies, and I was briefly excited by this movie. I watched the trailer for about 20 seconds before turning it off-- yuck. Man, what a disappointment.
It seems like the point of the movie is to watch each character die. There might be a sci-fi "plot" hidden in the movie somewhere, but I certainly didn't see it in the trailer or anywhere else.
"Can of worms? The can is open... the worms are everywhere."
You may in fact even overheat. The human body puts out about 100 watts of heat and if it can't radiate away that much (I've no idea of the figures of direct radiation of the body) then you could start to heat up and could even die of heat stroke if nothing else killed you first.
The temperature of the person in the vaccuum. A vaccuum in space will have far less radiation in it than say a vaccuum in a research lab. Therefore the NASA tech would not be subjected to the same harsh conditions if they were freely floating in space.
Hence why the astronauts in Sunshine wrapped themselves before exiting the spacecraft.
Yes, of course, but when you boil something the total heat in the system stays constant. So, even though the amount of heat in your *body* would drop, the total heat in the *system* (consisting of your body plus the water vapor floating in space around you) would stay the same.
Unfortunately, even though this makes perfect sense to the big brains at Slashdot, the average astronaut is probably too stupid to take comfort from it.
Really, I'd say conciousness for 10-15 seconds, and risk of death approaching 100 percent at 2 minutes, based on the link. Remember, the 2-3 minutes guy was examined by autopsy.
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I have no idea what any of that means, but I'll mod to the death your right to say it! :)
Bark less. Wag more.
I had never heard of this one, sounded interesting... then I went to the movie site and found a synopsis.
Come on guys, does every SF movie have to be so utterly silly and stupid? Granted, written SF (actually, written anything) has pretty well died in the last few decades, but there's still lots of good stuff to make movies from, if anyone would bother. All the way out special effects and artistry don't change the fact that the "science" is pre-kindergarten level (at best) and the story (assuming it's at the level of previous atrocities like Supernova or that... thing about bombing the center of the Earth) is mostly an excuse to showcase boobs and explosions that hopefully distract from the plot and dialog.
You know how much I'd like having just one new movie to look forward to? You know how embarrassing it is when the best you can hope for is Star Trek XXX or Star Wars: Attack of the One Dimensional Hero (either of which would beat this, from the sound of it.)
Very slowly. Possibly not at all for most tissues. I know lungs will, and quite possibly taste buds. The only other things I would worry about as far as pressure goes would be eyes, ears, and blood vessels in the nose. I've heard third hand accounts of divers getting nosebleeds, and one of my friends is thinking about getting those vessels cauterized, because he gets nosebleeds if he sneezes too hard. Just about everyone knows about working your jaw muscles when you're flying because of pressure differential, so it doesn't seem that outrageous that damage could occur there. Eyes are mostly liquid, although I don't know how well they deal with a lack of external pressure.
I see your informative link, and raise you a pithy comment.
Also, while not recalling the specific reference, my memory seems to remember an Analog Magazine (why don't we have good SF magazines like that one any longer) science fact article on how you don't immediately explode when exposed to vacuum.
So I'm calling Prior Art on all of this. Not my prior art, but that Prior Art exists.
"It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
I'm no genius on the subject, but isn't there the case that divers have significant "explosion" resistant forces due to the water they're surrounded by?
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Open Source Sysadmin
Regardless of the vacuum of space, the undiluted UV radiation would toast your skin to a nice golden brown pretty quickly. Hmm, someone call Ron Popeil, I've got a plan to make millions.
MOD PARENT UP INSIGHTFUL
The cosmic background radiation will neither cool the body, nor does it provide a heat dissipation [sp?] method. Therefore it's not relevant to the topic that I cited.
Joachim
People don't write Manifestos any more -- what's going on in this world? [Frank Zappa]
Because it's still a vacuum. Do you want your hands covered in extreme "hickeys" in a few seconds? Swelling? Getting sunburn and cold? While even the combination is probably not really dangerous, it's not really comfortable either. Unlucky me, I cannot experiment with low pressure in any other way than sucking my fingers very hard =), but that's of course nowhere near the suckiness of space.
That, and it might be too difficult to make your sleeves airtight at wrists. At least without a rather biting rubber loop..
SCUBA divers experience sudden pressure changes in the realm of 15 PSI all the time. They don't "explode," they just get the bends. Yeah well, they never experience absolute pressures below 15 PSI though. Maybe your organs can withstand pressure loads better than tensile loads :-P
It also handles the issue of boiling due to low pressure.
The blood would not boil, and there is not enough unbound water in the rest of your body to cause real harm. Actually, a NASA technician survived in vacuum for 30 seconds. The last thing he remembers is his saliva boiling.
Joachim
People don't write Manifestos any more -- what's going on in this world? [Frank Zappa]
Comment removed based on user account deletion
I actually retract what I said...it would seem that in a vaccuum the body would have a hard time loosing heat since their is no medium with which to interact. Your point is duly noted...I stand corrected! ;)
We are talking about relative pressures here. A 15psi pressure difference from an established datum exerts the same forces on a body no matter what environment you are in.
I'm attempting to repeat your experiment as we speak, I'll gkjnet bac kto youu w ith teh reuslt in...
...uuggggggh.
No. The pressure differential is all that matters. It makes no difference if the pressure differential is 30 PSI -> 15 PSI or 15 PSI -> 0 PSI. This is why depth charges work. The medium will affect how long it takes to equalize pressure, but not prevent the bursting in the first place (assuming the pressure differential is enough to cause the bursting).
Reality has a conservative bias: it conserves mass, energy, momentum...
The temperature of the person in the vaccuum.
98.6 F.
A vaccuum in space will have far less radiation in it than say a vaccuum in a research lab.
The only response to this I can muster is, "If it weren't for my horse, I wouldn't have spent that year in college." Go ahead and re-read the article as well as other comments within this thread to find out why one wouldn't loose heat very quickly in space, even when not in the sunlight.
Hence why the astronauts in Sunshine wrapped themselves before exiting the spacecraft.
That was a movie and in no way represents reality.
Sunshine, while visually sumptuous, is about the stupidest "space" movie in recent memory. Anything I saw happen in this "movie" could automatically be assumed to be the opposite of real life and common sense - I swear to god, this movie was so bad it gave me a stroke *and* the gout - so obviously you would A) not freeze instantly, and B) not be doing what those morons on the Icarus II were doing in the *first* place.
-- Let him who is without spelling error ignite the first flame --
This is not quite true. Since the pressure is so low in space, gas trapped in your skin would be continuously escaping and your bodily fluids would be also be boiling. These are thermodynamic processes which would also serve to cool you down. To be honest though, I do not know precisely how they would stack up against radiative losses.
Actually, vacuum causes everything to expand. Hence the "penis pump".
The cake is a pie
From this page: http://van.physics.uiuc.edu/qa/listing.php?id=1145
In the 1950's, Joe Kittenger, a high altitued ballon test pilot went up to over 102,000 feet where it's virutally space and it is very close to vacuum, his glove malfuntioned and lost pressure.. His hand swelled up a bit and he lost movement and function. But his hand did not explode. Once repressurized, everything was normal.
I'm no genius on the subject, but isn't there the case that divers have significant "explosion" resistant forces due to the water they're surrounded by?
Your body is mostly water, which doesn't really expand or contract due to pressure. Pressure is an issue with respect to the gasses in your lungs and blood. If external pressure is decreased (1) the air in your lungs will expand, doing so too rapidly can damage the fragile aveoli in your lungs where gas exchange with the blood occurs. (2) the air in your blood may come out of solution and form bubbles, much like opening a carbonated soft drink. Sorry, no explosion, just lungs filling with blood and/or arteries/veins being blocked by bubbles. Very bad for the diver, but terribly undramatic for TV and movies.
where men were moved from a crippled spaceship to a functional one, without vac suits. This has a link to a 1931 story about surviving vacuum.
Basic science. P1*V1=P2*V2
If P2~=0 psi and P1 is anything higher than 0 V2 will approach infinity. Any confined air will cause significant damage.
Scuba divers know that (as far as confined air pockets) it isn't absolute pressure you need to worry about, it is the compression ratio. You should be able to handle holding your breath with 3/4 of a lungfull going from 60 feet to 30 feet, but you wouldn't be able to do the same from 30 to 0
As far as air bubbling out of your blood, that's slightly more complicated than just pressure and volume since the air reacts chemically with the blood.
I think everybody wants to forget the film Event Horizon.
relly who would jump into space without a suit anyways. well everyone might have a diffrent opnion of the efects one thing we all agree on your not going to last very long lol. humm 15 seconds or so. best idea hear dont do it lol. but sence none in real life has been tossed into space without a suit or anything simler we relly dont knoe. but if you beleve in the freez effect and somone asked abought a open wound. the wound would probly instantly freez and seal itsself. not that it would buy you any more time anyways lol.
A Fall of Moondust was where the tourist ship that sailed on the sea of lunar dust had an accident and got buried 15 meters under.
This isn't entirely true. Things are a little different as you begin to approach zero psi. At constant temperature, going from 30 to 15 psi, the volume of an ideal gas doubles. Going from 15 to 0 psi, the volume of an ideal gas goes to infinity.
There was an accident where divers in a decompression chamber were explosively decompressed from EIGHT atmospheres. Their bodies literally did explode, killing them instantly.
Patrick Doyle
I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
You actually only have 10-15 seconds of consciousness though. Once your lungs are exposed to a vacuum, the oxygen in your blood is released, and after so many seconds when the deoxygenated blood reaches your brain it's sleepy time.
You can approximately halve your saturated pressure withouth getting bends. In other words, if you have suturated to 30m (4 atm), you can rise to 10m (2 atm) without bends. If you go to the surface you're quartering your pressure which is a Bad Thing.
I've done a lot of SCUBA, some of it at high altitude (over 6000 ft). At 6000 ft, the surface pressure is far lower, so the effective decompression becomes a lot more complicated. A dive to 65m is equivalent to diving to 80+m at sea level.
In space (0 atm or thereabouts), the ratios become far harder to maintain and you would not want to be in 0atm for very long.
Bends is not something you'd want to piss about with. I know a few people who have had mild bends, even had very mild bends myself, but I also know a person who had pretty severe bends when he ran out of air at 40m or so. He was in hospital for a week or so and struggled walking for many months. In more serious cases people have died due to tissue damage in major organs/brain.
Engineering is the art of compromise.
You can get a pulmonary embolism in 5 feet of water if you do it right (wrong?) It actually takes a lot of work to get bent. There are a number of barotrauma disorders. Most of them occur in the first 20 feet of water.
I've been diving for over 20 years and teaching for over 10. One of the things I do for my advanced class on the deep dive is to fill a balloon to about 1/3 capacity at 100 feet and another to 2/3. Neither survives the ascent. The tennis balls crush, the hot and shaken soda doesn't fizz. And interestingly enough, it takes three or four times as long to solve simple puzzles, like opening combination locks.
SR71 crew wore full up "space suits". At 100,000 feet, water at body temperature doesn't really boil, it sublimates, both boiling and freezing at the same time.
What's with all the space related submissions lately?
A more interesting question is: I wonder if terrestrial based life will ever evolve to make space its natural habitat. After billions of years, life made the journey from the marine world to land and from land to the air - will terrestrial life ever make a similar transition from an atmosphere contained existence to free space? I think it is inevitable; and as my favorite hero once said "life will find a way"
I envision someday whale like creatures "swimming" with large solar sail structures collecting energy from the sun and existing in a relatively large inhabitable band of the solar system.
I think that the injuries the dude form Event Horizon also were pretty real too - his eyes were damaged, frost, and the bubbling of gas from his blood "the bends".
You mean the scene where he's repeatedly screaming about how he can't breathe (while taking big gasping breathes) and we can hear him through the vacuum? Yeah, that's pretty realistic except that eye damage (especially like he suffered) and frostbite aren't normal symptoms of actual space exposure as the article states. Event Horizon's portrayal of vacuum exposure was only slightly more realistic than Total Recall's.
Remember, this is the same movie where that same character poked his finger into a contained black hole and pulled it back out and where people had to get into acceleration couches to cushion them against high-G acceleration but left all their dirty dishes on the table and all their pictures pinned up to the wall.
Event Horizon ranks up there with Starship Troopers and Mission to Mars as one of the worst suspension of disbelief destroying stinkers I've ever watched. You could drive a truck through the holes in the parts of the plot based entirely on bad physics.
If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
Only if it's conducive to the plot.
FWIW I don't think that was actually a black hole he put his finger in, more like the Other Side (that which had infected the ship)
Just a guess tho-
So rise up, all ye lost ones, as one, we'll claw the clouds.
Doesn't it also depend on how fast the pressure change occurs? Wouldn't an instant change to 0 PSI cause a lot more damage than a change over a minute?
> And as TFA pointed out you will embolize if you hold your breath above that more or less 80,000 ft altitude.
Correction, you can embolize in only a few feet of water, which is a fraction of 1 atmospheric pressure, so, just in case you know in advance that your pressurized aircraft is going to explode, don't hold your breath, regardless of the altitude!
Give a man a fish and you have fed him for today. Teach a man to fish, and he'll say "WHERE'S MY FISH, YOU IDIOT?"
So, hopefully they had already asked him about this.
10 questions from the film's scientific advisor, a CERN physicist: http://www.popularmechanics.com/blogs/science_news /4219685.html
The cosmic background radiation will warm the body, only very slightly. Any body will always dissipate heat by radiation, and the amount is in relation to the body's surface temperature in K to the power of four, check Stefan-Boltzmann law.
Check MLI for an interesting read.
Clarke also explained this in detail, along with deep sea diving experiments, in one of his non-fiction books. Its more than 30 years since I read it, so I forget which one. The upshot was they did a lot of strange things to monkeys.
BUT, the pressure of the surrounding atmosphere (the water) is always higher than the vapour pressure of your blood. If the surrounding pressure were to drop below the vapour pressure of your blood (like in space), it would start boiling until it has cooled of sufficiently. At 37C the vapour pressure is a couple psi, maybe 1-2.
So although you wont pop like a balloon, your blood will immediately start boiling.
Not a situation I would like to be in!
Heat does not require a medium to propagate. In a vacuum, heat can travel through radiation, so you would have to be pretty well insulated to prevent that.
"..One hosts to look them up, one DNS to find them, and in the darkness BIND them."
I haven't seen anything on vision. Would you be able to see during you final 10-15 seconds?
Well, that's what I was getting at when I mentioned time to equalization. But it's not the final volume that's the problem to you, it's the force exerted by it trying to reach that volume.
Reality has a conservative bias: it conserves mass, energy, momentum...
Yes, but once the water has vaporized and is floating away from you, the fact that it has gained heat isn't as important to you as the fact that your body has lost heat. Unless you were planning on collecting it and compressing it to liquify it and reclaim the heat, that heat is as good as gone. The body floating in space is not a closed system.
Actually no, frostbite isn't an issue. In vacuum, there is no heat transfer through convection. The only way to lose heat is through thermal radiation.
Evaporation, yo.
-- "Oh. This guy again."
Depending on how rapidly the decompression occurred, gases in the intestinal tract could expand enough to rupture organs. In an altitude chamber, you can feel a noticable difference in the pressure the gas in your intestines.
Couple of rolls sounds like a reasonable makeshift pressure suit.
Engineering is the art of compromise.
Actually, she did did say not to exhale. The episode was "Disaster", Season 5.
Crusher: "Once the air is vented, the first thing you'll feel is an extreme pressure on your lungs. You have to resist the temptation to exhale.TrekkieGod to the rescue!
Warning: Opinions known to be heavily biased.
You mean to tell me in all those trips to space the havent launched a rat trough the airlock to see what it does? Of course it would be in the name of science...
You would only lose heat via radiation, a much slower process.
I expect evaporative cooling would be a significant problem in a vacuum. Frostbitten eyes... eeeew.
include $sig;
1;
The scene in "2001" was adapted from an earlier Arthur C. Clarke short story, "Take A Deep Breath".
By the time of the movie, Clarke was aware of Air Force research in high altitude chambers that people could indeed survive brief periods of vacuum exposure (although unconciousness results after 15-30 seconds from oxygen starvation, so you'd better have help or get pressurization underway by that time). However, as a SCUBA diver, Clarke would also have known that holding your breath during a sudden decompression (as Dave did in the movie) is a virtual guarantee to get a lung embolism or worse. Dave should have been exhaling when he blew the hatch, it's not like you can hold your breath against a pressure differential of even 3 PSI (if the pod was pressurized with pure O2) let alone 14.7 psi (air).
-- Alastair
In June 1971 an USSR crew died in a spacecraft that was accidentally de-pressurized during re-entry and none of the crew had spacesuits on due to the lack of space in the module.
http://www.astronautix.com/flights/soyuz11.htm
At sea level the atmosphere is pressure is 14 PSI and space is 0PSI so you will start to "exploded" because this pressure difference. Really what will happen you will "degas" since all dissolved gases in your body and other materials (ie water) that boils at 0 PSI will turn to gas and exit your body at a rapid rate, depending on the temperature. This is the same as the bends drivers get when they rise to quickly from a deep long dive. However you need air to live so all a few or more seconds is all you need to go unconscious then another few more seconds you will die because of this degassing of your body. The radiation and other stuff are secondary since the Soyuz 11 crew had a good protective spacecraft minus the air during re-entry.
An honest to God Geekgasm.
BTW. Google Spellcheck knows the word Geekgasm.
Is buying a Harley Davidson as your first motorcycle since you were 16 at age 49 a midlife crisis issue?
All of this made me think - Being shoved out into space would certainly cause a rush of adrenaline. I wonder how much of an affect this would have on consciousness and the temporary human ability to cope with space-like conditions.
Fact: Everything I say is fiction.
The article, and a page it links from some guy at NASA, says that trying to hold your breath will kill you, and both compare it to holding your breath while ascending in diving. But the linked resources also point out that when the vacuum of space enters your lungs it turns the inside of your lungs into a bloody mess in a matter of seconds, which you may or may not survive. It seems like the best course of action by far is to keep enough air in your lungs to keep the gases in your blood from ripping your lung tissue apart, but not keeping so much that it does damage by expanding beyond your lung capacity. Perhaps just fully exhaling, and then holding your breath would be best. Any informed opinions on this?
They had a kind of spacewalk in Titan AE (http://www.imdb.com/title/tt0120913/) too. Great movie by the way.
:)
I remember one of them said "Exhale!" right before the space "walk", and the trip lasted just a few seconds.
I always wondered if it was actually possible. Now I know, I guess
It's The Golden Rule: "He who has the gold makes the rules."
Hmm... I question his "oxygen in your lungs will explode so you can't old your breath" theory. Our lungs, ribs and associated tissues are very tough. The pressure differential to vacuum is only 15 psi. I've free dove to 90' many times with no trouble which is sort of the opposite. People climb to the top of Everest and go far higher in balloons without exploding. HOWEVER, more importantly his 15 second limit is based on using up the oxygen in the blood in that time. BUT I have expelled all the air in my lungs, that I can so sort of similar to space, and then stayed under water for four minutes. I didn't black out like he claimed I would. Yes, I trained for that, but so have many other people who've done similar or even longer times. 15 seconds to blackout is an absurdly low assumption. Many people, and probably you, can go a lot longer than that. I can.
I've done 4 spacewalks and during vacuum chamber training we open our suit purge valve, allowing the pressure in the suit to drop a bit (from nominal 4.3 psi) and I did feel the sensation of the saliva bubbling; it is similar to the sensation of soda pop on your tongue. I haven't seen the movies mentioned (other than 2001), but my guess about vacuum exposure is that you are more likely to be injured by the flying debris (including your own velocity as you impact a wall or whatever) associated with sudden decompression through a hatch than by a very short exposure to 0 psi. During one chamber run, I had a water line poppet valve stick open when I disconnected from the chamber wall. The water stream broke up into droplets that immediately froze, producing an impressive shower of ice particles. Over about 5 to 10 seconds, the icing point traveled up the water stream and formed a clump around the poppet valve, sealing the leak. Oh, by the way, I tried whistling while EVA and even the nominal suit pressure is too low to produce an audible sound.
Ka D'argo could go into space without a spacesuit. His whole race had undergone genetic engineering to be able to be warriors on the new frontier.
</big_nerd_moment>
His limitation was needing to hold his breath. 15 minutes IIRC.
It made for some very impressive visuals, with D'argo standing next to Crichton (in his black spacesuit) while standing on the skin of Moya with a big planet on the background.
Easy: give a bit of money and a bottle of vodka to some random russian dude, and send him to space without a space suit.
Hey, that's neat! I didn't want to be worse, so I thought I'd find out what happens if we would suddenly realize that "space" is actually carbon monoxide. So I filled my lungs with as much of the stuff I could.
Doctor said my blood can't take upp very much oxygen now. I'm going back there tomorrow.
Ummm... no, you wouldn't. You would be long dead before radiation would lower your body temperature significantly.
See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
Asplode.
It makes perfect sense to me that you could survive in space for "a very short time".
Think of it this way, an ice cube doesn't stand any chance in a 400 degree oven, but if you actually put on in there, it's not instantly steam. It takes short time to completely melt and then a longer time to start boiling away.
The same thing, even if, without the supporting pressures, blood would start doing bad things as it passed through your lungs, you wouldn't instantly be without blood.
The pressure would be bad on your eyes but if you closed them, you would have some moderate protiection to slow the problems.
Not sure if you should hold your breath or not: on one hand, by maintaining the pressure in your lungs, you prevent the tiny (and not-so-tiny) blood vessels in your lungs from popping and causing problems, but then you have to contain more pressure inside yourself.
Possibly for a very short stint, the best thing would be to start with a full breath of air and constantly exhale? though thats little more than a guess.
I don't see how 1 atmosphere's worth of pressure difference is enough to make you explode like some movies want to show.
Isn't going like 17 feet under water roughly 2 atmosphere's of pressure? why don't fish explode when we pull them out of water if going from 2 to 1 atmospheres is enough? (yes I do realize that fish from extreme depths do explode but you're talking miles of water depth there, FAR more than 1 atmosphere.
Ugh...that's not a pretty thought.
Reading the wikipedia article, though, it sounds like three of the divers didn't explode, but did die from the injuries sustained the fluid in their bodies rapidly boiled. The fourth was sucked into the vacated hatchway where he was "torn apart" in a rather unnerving but probably painless manner. The article isn't clear if that was due to the sudden difference of about 120 psi inside and outside his body or merely due to his body becoming entangled in the hatch as he was sucked through, but from my reading of the incident, I kind of suspect the latter. The other divers wouldn't have experience very much more rapid of a pressure change, I would think.
Read your own link:
Diver D4 was shot out through the small jammed hatch door opening, and was ripped apart. Subsequent investigation by forensic pathologists determined that diver D4, being exposed to the highest pressure gradient, violently exploded due to the rapid and massive expansion of internal gases.
The other 3 bodies were intact, and except for strange things like extreme rigor mortis and fat deposition in the blood, they were in one piece.
So in other words, make sure not only to empty your longs, but let rip a big long fart before you open that airlock.
1. get a vacuum cleaner (the stronger the better).
2. turn on and place nozzle on forearm.
3. wait until it hurts enough that you want to turn it off
4. turn it off (duh)
5. inspect hickie that you would get all over from exposure to vacuum
(and no, you wouldn't explode in space as low pressure doesn't work the same as high pressure)
Disclaimer: I am a physics PhD who does lots of work in vacuum chambers.
I'm not sure what makes you think you can't measure a temperature in a vacuum. A simple mercury thermometer could measure temperature in a vacuum (assuming the temperature is within the scale of the thermometer). All you do is wait for the temperature to stop changing, and thats it. Just because no conduction takes place doesn't mean you can't measure the temperature. There is still loss/gain of heat through radiation.
However, the combination of evaporation of the water in your skin, and the radiation of your heat leads me to believe that a human would freeze very quickly. On the other hand, it still wouldn't be as quick as death from depressurization.
Basically, if you end up in space without a suit, your SOL... unless someone happens to be using an infinite improbability drive somewhere around your part of the galaxy.
The first description of how this could be done was in EARTHLIGHT by Arthur C. Clark, a S.F. novel published in the fifties. I always thought Clark's description of the method sounded good, but I wouldn't want to try it. Sorry, Arthur.
"The secret to staying warmer when you find yourself naked in space is to keep calm. You don't want to be sweating."
Okay - will someone tell me why, with this closing phrase, this post isn't modded +5 "Funny"?
Anybody?
"As God is my witness, I thought turkeys could fly." A. Carlson
"Without [a spacesuit], a spacewalker would asphyxiate from the lack of breathable air and suffer from ebullism, in which a reduction in pressure causes the boiling point of bodily fluids to decrease below the body's normal temperature." boiling body fluids? sounds painfull
stuff
Wow - such presence of mind. Although he was about to pass out, he reasoned his way through the physical cause of his saliva evaporating!
Manny: Bernard, this Therm-away jacket you bought me, it doesn't seem to be working. I feel quite warm!
Bernard: Trust me, it's what the astronauts use to keep cool.
Manny: Is space hot?
Bernard: Of course it is! Where else do you think we get pineapples from?
So what's this cosmic microwave background radiation I keep hearing about that is hovering around 2.7K and was once very very very very very hot about 14 million years ago? "Empty" space is a misnomer as even "empty" space still contains particles such as neutrinos and others that are emitted by stars. If particle physicists are correct, "empty" space is even permeated everywhere by the Higgs boson which is what gives mass to all particles (the Higgs "ocean", or field as is the proper term, is a little bit similar to the aether once thought to exist in the 19th century). Be careful with that webpage though because it mentions God which is a bad word here on Slashdot. Similar to a casino where there is always a camera watching you, in space there is always something keeping you company, even if you can't see it.
this nation, under God, shall have a new birth of freedom. -- Lincoln, Gettysburg Address
I suppose you could survive a lot of strange things for a "short time". I'm sure there are plenty of bugs crawling around the launch pad at KSC that survive the shuttle's main engine ignition for a "short time". Granted, it's a *very* short time. But at that one glorious split second between life and death those little fuckers see the face of God himself.
---
Hmmmm. Looks like I'm off to a good start for this years Bulwer-Lytton fiction contest.
You don't get the bends from pressure differences, you get it from excess dissolved nitrogen. People have gone down and up more than 200m without breathing and without getting the bends, a difference of about 20 atmospheres.
Of course, pressure changes can indirectly cause excess dissolved nitrogen to be present.
People should also keep in mind, though, that "the bends" are usually not fatal and people tend to recover from them fairly well.
Read your parent again. He said 15 PSI, you're talking about 8 atm. If 1 atm == 15 PSI and it scales linearly (disclaimer: idunno), then the scuba incident would mean a sudden drop of 120 PSI.
Why would you not accept homosexuality, unless you were terrified of your own homosexual inclinations?
Farting after an explosive decompression in aircraft is well documented.
In a passenger airliner, I for one will be grabbing for the oxygen mask as fast as I can.
No sig today...
Yes, yes, all good and well, but the REAL question on everyone's minds... After eating firehouse chilli, how long can you survive IN a spacesuit?!?
Science advances one funeral at a time- Max Planck
Probably a good portion of the astronauts read slashdot, especially the ones who are more scientist than test pilot.
I'm serious. Are there any real, valid objections beyond "eew that's yicky"? In any case how is it worse than killing and eating the animal, as is a universally recognized activity?
Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
My point was only that there might be objections unrelated to one's own secret desires. These objections don't have to be valid.
If we begin to discuss specific objections, then apart from it being disgusting, one could also argue it was abuse, or likely to encourage species-hopping in pathogens. Moreover, killing and eating animals is not universally recognised as OK. I for one am vegetarian, as are many millions of Indians.
"Consent" is the magic word. Animals, pretty much by definition, cannot.
Fair enough. And good call on the pathogens front, I always wondered if lonely researchers had something to do with how HIV crossed over from green monkeys... >.>
:P As for abuse, only if it's non-consensual, I'd guess if the animal isn't constrained and it sticks around then it probably doesn't mind... OK, this discussion may be going too far now. :P
I'm also vegetarian, btw - I just used the how-is-eating-them-not-worse-than-rooting-them line because it's so rare (in my part of the world) to find someone who'll argue that eating animals is wrong.
Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
This is shown by the accident in 1966 when a NASA technician was exposed to vacuum due to an accident. He was exposed for ca. 30 seconds and lost consciousness after ca. 10 seconds. Please see also http://en.wikipedia.org/wiki/Human_adaptation_to_s pace#Unprotected_effects:
Joachim
People don't write Manifestos any more -- what's going on in this world? [Frank Zappa]
The science fair committee didn't like me.
In other words, The Hitchhiker's Guide gets it right again: DON'T PANIC!
Something bad is coming when people are suddenly anxious to tell the truth.
The primary cause of death in a vacuum is asphyxiation. So, the following article is relevant:
k /
Reviving the dead: http://www.msnbc.msn.com/id/18368186/site/newswee
It is asserted that cells do not die from lack of oxygen, but terminate themselves upon resumption of oxygen, because they have been preprogrammed to do so.
It is proposed to give drugs to prevent apoptosis prior to reviving asphyxiated patients, then resume the oxygen supply. In theory this could allow survival after even several hours of being "dead" from asphyxiation.
Money for nothing, pix for free
Couple of rolls sounds like a reasonable makeshift pressure suit.
--
so then, duct tape IS rocket scienceRocket science isn't rocket science!
Mongrel News all the news that fits and froths
http://www.space.com/businesstechnology/technology /spacesuit_innovations_050126.html
Informing people about the scams, shams, and bunk that assault them on a daily basis. http://www.jeremyduffy.com
The window is already cracking due to some previous abuse, they merely use the fire extinguisher to punch it out completely.
Well, of course you can if you're name is Chuck Norris.
In Space they can't hear you ..... whistle...... apparently.
and your beer may freeze shut.
Virtual particles don't contribute to actual heating unless you're in a non-inertial reference frame where they become real (usually Unruh radiation, unless you're near an event horizon, then it's Hawking). Even then, you need a lot of acceleration for any measurable effect, which is why Unruh radiation has never been observed.
I was referring to the non-zero energy ground state, which allows the virtual particles to exist, of empty space as being not absolute zero. Not the virtual particles themselves.
If someone is passing you on the right, you are an asshole for driving in the wrong lane.
Their bodies literally did explode, killing them instantly.
I'm not a doctor, but that's pretty much the effect I would expect... what with the exploding and all.
The ground state of the vacuum is still thermodynamically at zero temperature when in an inertial frame, for the reasons I stated. Virtual particles do not contribute to temperature; only real particles do.
I do realize this, I said it in jest, suggesting that you wouldn't ever cool off that much. I suppose it was not clear enough.
Video Production Support
You may be losing heat through radiation, but you will also be absorbing heat through radiation.