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I-A-B Quiz Time: Physics Practice [Pic]

Hits: 9461 | Rating: (2.3) | Category: Science | Added by: cobrakiller
Jump to: Bottom    Last Post
McGovern1981
Male, 30-39, Eastern US
 13338 Posts
Thursday, November 29, 2012 7:05:17 AM
Load velocity varies though!!

ferdyfred
Male, 40-49, Europe
 10858 Posts
Thursday, November 29, 2012 1:34:11 AM
Learn something new every day!!

Angilion
Male, 40-49, Europe
 11413 Posts
Wednesday, November 28, 2012 9:37:31 PM
Well, I looked it up...

You'd start to lose consciousness from oxygen deprivation in about 15 seconds - the process is highly accelerated by the lack of pressure making your lungs work in reverse, taking oxygen out of your blood.

That's assuming that you did as I suggested and breathed out. If you don't, you're probably dead from internal injuries in that 15s. Your lungs can't expand *that* much.

Surface water will boil very quickly (water will boil at skin temperature in vacuum). Close your eyes and mouth - plenty of water on the surfaces.

You'll get the bends. Bad times.

But the startling thing is that if you breathe out you won't die for maybe as long as 90s. You'll be unconscious in 15s, but if you breathe out and get medical attention in 90s you'll recover. Probably. Although you'll be blind for a while.

Angilion
Male, 40-49, Europe
 11413 Posts
Wednesday, November 28, 2012 9:22:44 PM
But you'd definitely die from suffocation before you froze.


Hence my comment about rapidly dying being more of a problem (than whether or not you could get an erection).

The lack of pressure would kill you even before the lack of oxygen would, though technically it could still be classed as suffocation. Although I think you might die from internal injuries if your lungs were full of air (which would expand a lot).

But definitely dying rapidly, one way or another. You could jump to the airlock of a very nearby rescue ship, but you'd better make it on the first attempt.

Hmm...would your corpse rot? It would be warm for many years, but I think it would rapidly become sterile too because I think that bacteria that can live in humans wouldn't survive in a corpse in space.

What a weird topic of conversation.

patchgrabber
Male, 30-39, Canada
 5710 Posts
Wednesday, November 28, 2012 8:20:48 PM
But you'd definitely die from suffocation before you froze.

patchgrabber
Male, 30-39, Canada
 5710 Posts
Wednesday, November 28, 2012 8:19:45 PM
I think you wouldn't even feel cold, but I'm not sure.

As long as you were in space in the shade you wouldn't really feel anything. If you were in direct view of the sun you'd approach 123 degrees celsius, but I think the radiation might do you in before you got to that temperature. @Angillion is definitely right that you would eventually drop to about 3 degrees kelvin (there's always residual background radiation everywhere in space leftover from the big bang).

Angilion
Male, 40-49, Europe
 11413 Posts
Wednesday, November 28, 2012 5:07:16 PM
how about one of those planes, that astronauts train in, that alternate between ascent and descent to produce 0 gravity inside...


There is already porn of that. Seriously, there is. You can rent those planes, if you have enough money. Someone did so for part of a porno sci-fi film.

Angilion
Male, 40-49, Europe
 11413 Posts
Wednesday, November 28, 2012 4:56:36 PM
Impossible, because it's too cold in space to get an erection.


Rapidly dying would be a much bigger problem if you were naked in space.

But, surprisingly, it wouldn't necessarily be all that cold. Most of space is close to a perfect vacuum. As a result, heat loss by conduction or convection is negligable. Heat loss by radiation would continue as normal, but that's not all that large for a human.

So you'd be dead quickly, but your corpse wouldn't freeze for a very long time. I think you wouldn't even feel cold, but I'm not sure.

Mr_Ike
Male, 18-29, Europe
 97 Posts
Wednesday, November 28, 2012 11:27:58 AM
@Greenbasterd. Gravity has nothing to do with this. Its about calculating a delta-v in response to accelerating a mass.

(Which comes out to 0,775 mm/s according to my calculation)

Langer
Male, 18-29, Europe
 389 Posts
Wednesday, November 28, 2012 10:54:38 AM
"Impossible, because it's too cold in space to get an erection."

how about one of those planes, that astronauts train in, that alternate between ascent and descent to produce 0 gravity inside...

...oh dear, this could take bukkake to a whole new level

FoolsPrussia
Male, 30-39, Western US
 3398 Posts
Wednesday, November 28, 2012 10:28:09 AM
Impossible, because it's too cold in space to get an erection.

mikelae18
Male, 18-29, Eastern US
 80 Posts
Wednesday, November 28, 2012 10:20:43 AM
"right, that's not taking any gravity into account.. this info is bogus"

in space

mikelae18
Male, 18-29, Eastern US
 80 Posts
Wednesday, November 28, 2012 10:18:54 AM
I'm 64.4 kg and my ejaculate is 8.2 gm (yes i've actually measured it, dont't ask). I've never measured my ejaculate speed so I'll use 12.5 m/s. ... 1.6 mm/s.

greenbasterd
Male, 18-29, Canada
 2336 Posts
Wednesday, November 28, 2012 10:00:53 AM
right, that's not taking any gravity into account.. this info is bogus

Ilikelogic
Male, 40-49, Europe
 522 Posts
Wednesday, November 28, 2012 9:42:34 AM
.78 mm/s
I would propose a bullet of 5 gram hitting a grownup at a speed of 45 km/h, would make him move at a speed of .74 mm/s by transfer of the momentum.















Cobrakiller,
congrats for being able to apply your knowledge to your day to day life, as the formula can be applied here on earth too.






bataleon27
Male, 18-29, Europe
 1179 Posts
Wednesday, November 28, 2012 9:26:18 AM
5ml, please bitch...

jendrian
Male, 18-29, Canada
 2490 Posts
Wednesday, November 28, 2012 9:26:14 AM
@Canoas: that's only true if the 1e^{-3} is a 10^{-3} and not an exp(-3)

Nickel2
Male, 50-59, Europe
 4542 Posts
Wednesday, November 28, 2012 8:23:07 AM
Only 5ml?

madest
Male, 40-49, Eastern US
 6458 Posts
Wednesday, November 28, 2012 7:57:52 AM
If I were in space, I'd be travelling the speed of light by now...

Canoas
Male, 18-29, Europe
 429 Posts
Wednesday, November 28, 2012 7:14:23 AM
7.8125*10^(-4) m/s

cobrakiller
Male, 18-29, Midwest US
 6948 Posts
Wednesday, November 28, 2012 6:42:02 AM
Link: I-A-B Quiz Time: Physics Practice [Pic] [Rate Link] - See if you can solve this equation.


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