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Totally off-topic thread
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| spacer | Date: Wednesday, 10.12.2014, 20:39 | Message # 2641 |
 Star Engineer
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Israel
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| so lets say on the surface of the planet 
"we began as wanderers, and we are wanderers still"
-carl sagan
-space engine photographer
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| HarbingerDawn | Date: Wednesday, 10.12.2014, 21:00 | Message # 2642 |
 Cosmic Curator
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| The heat would kill you first, the human body is capable of withstanding very high pressures.
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| Fireinthehole | Date: Wednesday, 10.12.2014, 21:32 | Message # 2643 |
 Pioneer
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| Quote HarbingerDawn (  ) The heat would kill you first, the human body is capable of withstanding very high pressures.
But long enough to keep you alive until you die from the heat? I believe that humans would survive a couple of minutes in the temperature of 400 C.
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| midtskogen | Date: Wednesday, 10.12.2014, 21:55 | Message # 2644 |
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| My guess would be that the pressure would knock you unconscious instantly, and then it's would be hard to tell whether you die of the sudden pressure increase, suffocation or heat since all would be fatal. It's kind of like asking if you're shot, stabbed and thrown into a fire, did the shot, stab or heat kill you?
But it's interesting to think that between 50 and 60 km up you would experience pressure and temperatures (and well as gravity) like on Earth, and you would probably be ok in an airship for quite a while with just a full reasonably tight face mask and oxygen and normal clothes.
NIL DIFFICILE VOLENTI
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| Aerospacefag | Date: Wednesday, 10.12.2014, 22:48 | Message # 2645 |
 Pioneer
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| Quote midtskogen ( ) tight face mask and oxygen and normal clothes.
There's still a lot of acid clouds around this location, you'd better not allow any contact with your organic, hm, parts, so care to use pressurised suit.
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| HarbingerDawn | Date: Wednesday, 10.12.2014, 23:42 | Message # 2646 |
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| From what I understand, there are no places on Venus where temperature and pressure are both Earth-like. At altitudes with Earth-like pressure, the temperature is too hot, and at altitudes with Earth-like temperature, the pressure is too low.
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| spacer | Date: Thursday, 11.12.2014, 02:25 | Message # 2647 |
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Star Engineer
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Israel
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| i think that the pressure will kill you first because i think that humans can survived in 400C for few sec or 0.00001 sec?
but the pressure just crash your body Immediately
"we began as wanderers, and we are wanderers still"
-carl sagan
-space engine photographer
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| midtskogen | Date: Thursday, 11.12.2014, 05:42 | Message # 2648 |
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| Quote spacer ( ) There's still a lot of acid clouds around this location, you'd better not allow any contact with your organic, hm, parts, so care to use pressurised suit.
The Veneran atmosphere consists of 150 ppm sulfur dioxide (maybe varies with weather and altitude), which is around the limit for what's lethal for humans even just for short exposure, but I don't think 150 ppm will easily burn your skin.
Quote HarbingerDawn ( ) From what I understand, there are no places on Venus where temperature and pressure are both Earth-like.
I would consider temperatures from -50C to +45C and pressure from 580 hPa to 1060 hPa Earth-like (in the sense that many people live in places comfortably where such conditions are frequently experienced). A pressure well over 1060 hPa wouldn't be a problem, though. According to the Wikipedia article, you would get roughly 34C and 640 hPa at 54 km altitude.
NIL DIFFICILE VOLENTI
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| Watsisname | Date: Thursday, 11.12.2014, 06:51 | Message # 2649 |
 Galaxy Architect
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| Venusian atmospheric temperature profile
Pressure profile
Venus has an altitude where pressure and temperature are comparable to Earth's surface, but it is below the cloud tops. So sulfuric acid would be an issue.
Venusian surface temperature: ~740K
Surface pressure: 90atm (~91 bar)
Which of these kills you first? Depends. How do you get there?
If "teleported instantly", then the pressure does. Not because it crushes you. 90atm isn't that much -- it's comparable to being about 900m below the ocean surface. Human body can manage this without much issue. The problem of humans in hyperbaric environments is not the compression, but the gas toxicity.
But humans are rarely subjected to those pressures instantly. So if "teleported instantly", then it's a different effect that is important to your demise: the shockwave (over 1000psi!) ripping through your throat, sinuses, and lungs. Think the reverse of explosive decompression.
Otherwise, the temperature gets you first, before any other effects of high pressure. 740K is very hot, producing 3rd degree burns in less than a second, and carbonizing vital tissues shortly thereafter.
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| DoctorOfSpace | Date: Friday, 12.12.2014, 19:36 | Message # 2650 |
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| Watsisname | Date: Friday, 12.12.2014, 20:13 | Message # 2651 |
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Galaxy Architect
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| Aww, I was expecting the troll to free himself of his fairytale shackles and live happily ever after under the sun. Maybe even move to Tahiti or something. Nope. Troll turned into rock statue. So sad. 
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| midtskogen | Date: Friday, 12.12.2014, 20:34 | Message # 2652 |
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Star Engineer
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| The Troll Hunter explains why trolls turn to stone or crack in sunlight. From the imdb FAQ:
Quote imdb Thomas interviews a veterinarian who works for the TSS and learns that the trolls' adverse reaction to sunlight is due to their inability to convert vitamin D into calcium, which causes their bodies to overreact. Gases are formed in their stomachs and forced into their intestines and veins, causing young trolls to explode. In older trolls, whose veins have become more constricted, the expansion occurs in the bones, everything calcifies, and they turn to stone. Either way, it's a very painful process and the reason why trolls only come out at night.
NIL DIFFICILE VOLENTI
Edited by midtskogen - Friday, 12.12.2014, 20:36 |
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| RockoRocks | Date: Monday, 15.12.2014, 19:49 | Message # 2653 |
 World Builder
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I will be inactive on this forum for the time being. Might come back eventually
AMD AR-3305M APU w/ Radeon HD 1.90 GHz 6,00 GB RAM
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| spacer | Date: Wednesday, 17.12.2014, 07:02 | Message # 2654 |
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Star Engineer
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Israel
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| http://yummyplants.com/wp-content/uploads/2011/12/Happy-Hanukkah.jpg
"we began as wanderers, and we are wanderers still"
-carl sagan
-space engine photographer
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| Handbanana | Date: Wednesday, 17.12.2014, 08:37 | Message # 2655 |
 Astronaut
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| From a satire page on Facebook:
Tonight... you.
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