MovieChat Forums > Total Recall (1990) Discussion > How did the air spread around Mars so qu...

How did the air spread around Mars so quickly?


When the reactor melt the ice, air burst out the pyramid mine and crash through Mars city glass how did it spread around the planet and sky turn blue so quickly?

In reality it would takes hours for it go all over Mars and for the sky to turn blue.

reply

Who said it didn't take hours? Pressure started at the mines and surrounding settlements and could propagate at any speed.

reply

I mean it would take time for the sky to turn blue.

reply

Who said it didn't take hours?

because they can breath within seconds. They couldn't have waited the few hours for it to fall back down to ground level (you see the 'air' spouting up into the stratosphere).

It’s ridiculous to critique a movie with the argument 'it's not real, so it doesn't matter'

reply

They can breath because they're so very close to the mines. The air didn't need to travel around the planet before it would help them. We're now finished with the OP's question.

You're now talking about the upward trajectory of the air which is a different question. On that question, I'd say that air is very thin, and its molecules are very light, so there's not a lot of upward inertia. Since the atmosphere at the surface of mars is about 1% of that on Earth, it's essentially a vacuum. Therefore it doesn't matter what direction the air exits from the mines because it will try to spread equally in all directions, much like inflating a balloon. Of course it still does have mass, so eventually gravity will work to hold it down, making it flow mostly horizontally and increasing the air pressure, presumably to roughly one Earth atmosphere.

Why one Earth atmosphere, you ask? Now that is a question for which I have no answer. I personally think that if that's what happens, then they simply got incredibly lucky. Also, nobody had better light a cigar or anything, or all that hydrogen and oxygen is going to recombine rather aggressively.

reply

One of the big things in this movie is the question if we are shown a real chain of events or a dream, designed to give the dreamer one hell of a "James bond adventure". There are signs that speak for both sides and ultimately are nothing but ambiguous. That being said, one of the many oddities is this climax you speak of. How, why, hue? The question you ask is valid, however not for a "bond movie dream". I am of the opinion that it is actually a dream, a dream gone haywire on some level but a dream none the less. And so, I submit; your question is irrelevant and part proof for the dream scenario.

___________
** I am normally not a praying man, but if you are up there, please save me Superman **

reply

In reality Mars wouldn't have enough gravity to hold onto that much air.

reply

I"d rather say that the gravity is strong enough but it's magnetic field is to weak to protect against the solar wins and so they will be a major obstacle for the atmosphere to sustain

reply

Maybe the reactor strengthen the magnetic field.

Maybe the bad science is another indication it's a dream.

reply

Bingo :o)

reply

Our sky is blue because of the magnetic field.

The martian sky to turn from red to blue would take forever, it happening in a matter of mins would indicate it's dream because seeing Mars with a blue sky is dream like.

reply

Mars with a blue sky is dream like.

Also, there's a comment by one of the assistants while Quaid is being prepped along the lines of 'Mars with a blue sky - that's new', indicating that it's all part of the dream sequence that is being fed into him.

reply

Our sky is blue because of the magnetic field.

no, no, no, no!

magnetic fields are invisible, they don't affect the colour of anything. The sky is blue because gas molecules that make up Earth’s atmosphere (mostly oxygen and nitrogen) scatter the blue portion of sunlight in all directions, creating an effect that we see as a blue sky.

red light waves are scattered the least by atmospheric gas molecules. So at sunrise and sunset, when the sunlight travels a long path through the atmosphere to reach our eyes, the blue light has been mostly removed, leaving mostly red and yellow light remaining.


"He's dusted, busted and disgusted, but he's ok"

reply

I am of the opinion that it is actually a dream, a dream gone haywire on some level but a dream none the less. And so, I submit; your question is irrelevant and part proof for the dream scenario.

Sounds good to me

reply

Nuclear reactors do have rods that go into water, they're so hot they create steam that goes on and on, if it explodes it would cause a nuclear explosion. The control rods of the alien reactor are gigantic like skyscrapers and they would create massive amounts of steam, since there were a dozen columns of control rods they would create like worldwide mega ton blast in a matter of mins.

reply

We have to suspend disbelief here. In order for the volume of air necessary to provide a breathing atmosphere for the whole planet to be exhausted in such a short amount of time (even a small planet like Mars) the exit velocity of air from the reactor would literally tear the surface of the planet apart.


Is very bad to steal Jobu's rum. Is very bad.

reply

Another indication it's a dream.

reply

Another indication it's a dream.


By that logic, just about every sci-fi movie and TV show are dreams..




Is very bad to steal Jobu's rum. Is very bad.

reply

Shut up

reply


Shut up


Okay, since you asked nicely..



Is very bad to steal Jobu's rum. Is very bad.

reply

On the reality side due to it's gigantic size and it being made up of dozens of columns with giant rods it would spread all the air all over mars in a matter of mins.

reply

"In reality it would takes hours for it go all over Mars and for the sky to turn blue."

One little pyramid ejecting air from the top (which would be about the equivalent of a smoke stack on a big factory, or a few/several factories combined) to create an atmosphere around an entire planet? It wouldn't take hours, it would take millennia, assuming there weren't other problems, which there are.

You can't just pump oxygen into the Martian atmosphere and expect it to remain as pure oxygen. Oxygen is highly reactive; readily forming compounds (e.g., oxides) with nearly all other elements. That's why metals and other things oxidize (called "rust" when it happens to iron, AKA: iron oxide). You need something which constantly produces oxygen in order to counteract all the oxygen that is being effectively lost due to it forming compounds with other elements, and one little oxygen-producing reactor isn't going to cut it for an entire planet; not even close. On earth, plant-life produces oxygen as a byproduct of photosynthesis, with about half of it coming from plant life in our oceans, and the other half coming from trees, shrubs, grasses, etc., on land. Even with all of that oxygen production constantly going on all over Earth since ~forever, oxygen only accounts for ~21% of our atmosphere, with most of the remainder being nitrogen (which, unlike oxygen, is more or less inert).

reply