105 réponses à ce sujet

[Jzadek72]

Soverain wrote...



what would happen when an organic body with soft skin is exposed to a vacum is that the pressure in the body will expand and the body will explode.

Incorrect.
Blood vessels rupture (especially in the eyes) but no explosions take place. This is merely bad fiction used to make space seem more dangerous, but I don't see why it is necessary. Space is a pretty nasty place as it is.

Anyway, scientific inaccuracies.... The pressure suits one is right, even if the effect is wrong. My personal favourite (although quite a subtle one) is the Oculus's red laser. Who would design a laser that was red? Red is one of the weaker lights, the lowest on the visble spectrum in fact. The laser should be invisible, and on the highest end of the spectrum - gamma or xray. If it has to be visible, make it purple. But that's a small gripe, and one that just annoyed me. These things generally do.

[RailTracer]

When it comes to the science stuff, I say go with either this:







or at 1:02 of this song:

[rabbitchannel]

RailTracer wrote...

When it comes to the science stuff, I say go with either this:



or at 1:02 of this song:

First one works pretty well for me. d:

[madisk]

Soverain wrote...

i would like to point out one obvious science inaccuacy in mass effect 2. when i boarded the collector ship for the first time, i took with me thane and jack who were both without pressure suits.
...

my squad member should have been wearing fullbody pressure suits.

Agree

Soverain wrote...

the law of motion which bioware noted when some alliance soldiers talked about it on the citadel is not applied to the normandy. if it was then fuel will not be used up when the ship it at contstant speed, in real life fuel will only be used up when the ship speeds up, slows down or changes direction, that would be complicated so its better bioware removes the fuel usage from mass effect altogether.

Fuel in ME2 only burns up in FTL travel between systems. Newtonian physics obviously don't apply for FTL travel because well Mass Effect fields.

Modifié par madisk, 08 mars 2010 - 06:53 .

[Pannamaslo]

RailTracer wrote...

When it comes to the science stuff, I say go with either this:



or at 1:02 of this song:

I lol'd

Also my personal favourite BS's are biotics and "mind melding". Lazarus project also qualifies...But who cares?It's a game, not e-learning physics/biological courses.

[Khayman71]

Soverain wrote...
I DO PHYSICS, that very pressure in the human body is why it will explode in a vacum, the internal body pressure will expand and continue to expand untill it ripp open your skin and escapes into space.
the posibility is that the body will explode before it freezes and then the guts and pieces freeze.

Then you need to keep doing some more. Direct from NASA;

http://imagine.gsfc....ers/970603.html

You won't explode, your blood won't boil, you won't freeze. Lack of oxygen will be the thing that kills you.

[Mnemnosyne]

I hate the fact that you could have people exposed to hard vacuum in this game. It's such nonsense. Why they didn't just have everyone appear in full armor in those scenes I have no idea. Yes, 'explosive decompression' is pretty much a myth, but exposure to vacuum is neither pleasant nor tolerable for more than a very brief period in an emergency.



It's not really that minor a gripe either, considering the models for full armor suits already exist, so they would not have had to do anything other than give them standard 'fully armored' models during the few missions where this takes place. Swap the normal character model for a standard armor model and the nonsense is gone without any significant modeling work needed. In fact, it would have been less work, since they wouldn't have had to model those ridiculous breather-masks like the one Miranda uses. They could have just triggered it to switch her into a standard armor suit anytime she currently displays the breather mask.

[Cross1280]

It is all a really mute point, because the only time in game you are directly exposed to the hard vacuum of space is duirng the initial cutscean when the Normandy gets destroyed.



So yes Joker should have gotten messed up a little bit, but his exposure to hard vacuum was maybe 10 seconds or so.



No other time in the game are you exposed to hard vacuum you are always on a ship or spacestation that has some sort of artificial gravity

[MoSlo]

Soverain wrote...

jimmyjoefro wrote...

Being exposed to a vacuum would not cause your body to explode, you would not instantly freeze, and the only thing that is likely to boil is the saliva in your mouth.

Your body is pressurized and would adapt to the vacuum environment. You could survive in space without a suite until you passed out from the lack of breathable air. Just be sure to stay out of direct sun light, unless you want a wicked sunburn.

I DO PHYSICS, that very pressure in the human body is why it will explode in a vacum, the internal body pressure will expand and continue to expand untill it ripp open your skin and escapes into space.
the posibility is that the body will explode before it freezes and then the guts and pieces freeze.

Pretty accurate. As to *why* there's expanding pressure:  a liquid's boiling point depends on the atmospheric pressure; less pressure, less heat needed. Water needs a lot less heat to boil in the alps vs boiling water at the coast.  You could end up with boiling water that's merely warm (that's where pressure cookers come in).

With the ambient temperature in space being pretty much zero kelvin, you'll never water in liquid in liquid form in space (mostly ice and gas). With no atmosphere (and no pressure), water will boil and go to gas pretty instantly.  Same goes for your blood and other fluids.  They boil instantly and while the effect might not be an explosion as such, i figure it'll be pretty graphic.

On ME2 itself, realism is an acceptable sacrifice if it means i get to shoot things in space.

[Kenshen]

Maviarab wrote...

I would like to point out that there at least 3 other threads talking about this...

also, just to blow your noodle....according to who? Have you been in space? Have you actually seen someone explode in space?

How do you know all this? ahhh yes....teh internets and men in white coats....do you believe everything that someone tells you?

define accurate....if your only basis for a thesis is what you have been told/read...who is to say what you have read/been told is really correct or accurate at all ?

I would just like to point out that one doesn't have to travel to space to see what affects vacuum has on living things.  I work on vacuum chambers that easily reach 1E-9 torr and I have heard stories on what happens if something that is alive (water based) is left inside a chamber like that.

[madisk]

MoSlo wrote...
Same goes for your blood and other fluids.  They boil instantly and
while the effect might not be an explosion as such, i figure it'll be
pretty graphic.

Your body still has internal pressure, genius.

Modifié par madisk, 08 mars 2010 - 07:19 .

[The Governator]

Jzadek72 wrote...

Soverain wrote...



what would happen when an organic body with soft skin is exposed to a vacum is that the pressure in the body will expand and the body will explode.

Incorrect.
Blood vessels rupture (especially in the eyes) but no explosions take place. This is merely bad fiction used to make space seem more dangerous, but I don't see why it is necessary. Space is a pretty nasty place as it is.

Anyway, scientific inaccuracies.... The pressure suits one is right, even if the effect is wrong. My personal favourite (although quite a subtle one) is the Oculus's red laser. Who would design a laser that was red? Red is one of the weaker lights, the lowest on the visble spectrum in fact. The laser should be invisible, and on the highest end of the spectrum - gamma or xray. If it has to be visible, make it purple. But that's a small gripe, and one that just annoyed me. These things generally do.

Here is where I know enough to be dangerous (or at least look dumber than someone who admits he knows nothing...Socrates?).  Perhaps the red laser is akin to radiation.  Gamma rays are so dangerous because they are difficult to block.  They do less damage than the much larger Alpha rays, but Alpha rays can be blocked by...paper if I recall correctly. 

Yeah, I probably got that completely wrong, but there it is. 

[Mondo47]

Pannamaslo wrote...

*sigh*

<snip>

Ref.

Survival Under Near-Vacuum Conditions in the article "Barometric Pressure," by C.E. Billings, Chapter 1 of Bioastronautics Data Book, Second edition, NASA SP-3006, edited by James F. Parker Jr. and Vita R. West, 1973.

The Effect on the Chimpanzee of Rapid Decompression to a Near Vacuum, Alfred G. Koestler ed., NASA CR-329 (Nov 1965).

Experimental Animal Decompression to a Near Vacuum Environment, R.W. Bancroft, J.E. Dunn, eds, Report SAM-TR-65-48 (June 1965), USAF School of Aerospace Medicine, Brooks AFB, Texas

Wow! Solid science comeback! Thanks for this info - it's damn interesting even to an an old lady who's forgotten all the stuff she did at school (when the wheel was at the forefront of modern science ). I remember when I first saw Outland years ago and was so stoked about the whole 'vaccum = exploding head' gig. Then I read stuff along these kinds of lines and spent most of the rest of my life laughing at it in movies that should have known better and stayed awake in class.

But I guess you can't beat the occasional exploding person in space... crap science, but it's satisfying to watch at least

[Kayback]

The idea behins science fiction is the story is fiction, not the science. It also annoyed me on a couple of occasions.



The idea behind the pressure suits on the Reaper station, I chalked that up to it being big enough to have an atmosphere of some sort.



KBK

[The Governator]

Mondo47 wrote...

Pannamaslo wrote...

*sigh*



Ref.

Survival Under Near-Vacuum Conditions in the article "Barometric Pressure," by C.E. Billings, Chapter 1 of Bioastronautics Data Book, Second edition, NASA SP-3006, edited by James F. Parker Jr. and Vita R. West, 1973.

The Effect on the Chimpanzee of Rapid Decompression to a Near Vacuum, Alfred G. Koestler ed., NASA CR-329 (Nov 1965).

Experimental Animal Decompression to a Near Vacuum Environment, R.W. Bancroft, J.E. Dunn, eds, Report SAM-TR-65-48 (June 1965), USAF School of Aerospace Medicine, Brooks AFB, Texas

Wow! Solid science comeback! Thanks for this info - it's damn interesting even to an an old lady who's forgotten all the stuff she did at school (when the wheel was at the forefront of modern science ). I remember when I first saw Outland years ago and was so stoked about the whole 'vaccum = exploding head' gig. Then I read stuff along these kinds of lines and spent most of the rest of my life laughing at it in movies that should have known better and stayed awake in class.

But I guess you can't beat the occasional exploding person in space... crap science, but it's satisfying to watch at least

Like in Event  Horizon when the man's eyes started bleeding?  That was...interesting.  

[marshalleck]

The difference between earth's atmosphere at sea level and space is what, folks? That's right, it's 1 atm. Nobody explodes from such a relatively slight pressure differential. People have exploded from rapid depressurization, but it was from a very high pressure environment (9 atm) to normal (1 atm) within a matter of seconds. That's much greater than going from 1 atm to zero.

Modifié par marshalleck, 08 mars 2010 - 07:45 .

[Schneidend]

It's never mentioned that the Collector ship is exposed to the vacuum.



/thread

[cipher_Cero]

OP is calling out scientific inaccuracies in a world where guns fire unstable singularities that only affect your enemies and yet won't always kill them.

[ZennExile]

The game starts off with Shepard being spaced, entering an atmosphere, and then magically not turning to super heated vapor upon re-entry. If a human body entered the atmosphere in an uncontrolled re-entry there wouldn't even be DNA left let alone a partially intact corpse with which to rebuild...

So yeah, I wasn't expecting much in the way of accuracy from that point forward...

Modifié par ZennExile, 08 mars 2010 - 07:59 .

[BattleVisor]

lol human bodies wouldnt explode in a vacuum

[Schneidend]

ZennExile wrote...

The game starts off with Shepard being spaced, entering an atmosphere, and then magically not turning to super heated vapor upon re-entry. If a human body entered the atmosphere in an uncontrolled re-entry there wouldn't even be DNA left let alone a partially intact corpse with which to rebuild...

So yeah, I wasn't expecting much in the way of accuracy from that point forward...

Well, the planet Shepard and the Normandy landed on had a very thin atmosphere and low gravity. It's also not inconceivable that N7 heavy armor can protect Shepard's body, at least partially, from the rigors of reentry.

[System Shock]

.. this is what happens when the OP doesn't profess his/her love for the game or one character...



... but I do see what the OP is saying... even within science fiction there needs to be a degree of credibility to the environment to make the player/viewer immerse in the story, no matter how fantastic the story is.