suggestions vaccum

[Palmeza]

Hello,

just to tell you that gas is always heavier than vacuum
and that the cold is heavier than the hot.

Sorry to post this here, but I couldn't find a place to put it except

French (original):

Spoiler

 

Bonjour,
juste pour vous dire que le gaz est toujours plus lourd que le vide
et que le froid est plus lourd que le chaud.

pardon pour poster ça ici mais je n'ai pas trouvé où le mettre sinon

 

 

[SharraShimada]

Nope gas cant be heavier than nothing. Vacuum is, per definition, nothing at all. And nothing has neither mass nor weight.

Gas on the other hand has pressure. Pressure tends to expand. So, vacuum cant exist when a gas is present.

[Sasza22]

8 hours ago, Palmeza said:

just to tell you that gas is always heavier than vacuum

This works if you make the gas unable to expand. Any gas will expand to fill all the available space but if you put it in a canister it will fall down.

8 hours ago, Palmeza said:

and that the cold is heavier than the hot.

This also works in the game but it`s hard to notice along other means of heat exchange. Hot gas will go up but will also spread the heat around so it equalizes pretty fast.

[Palmeza]

On 21/04/2019 at 9:16 PM, Sasza22 said:

This works if you make the gas unable to expand. Any gas will expand to fill all the available space but if you put it in a canister it will fall down.

This also works in the game but it`s hard to notice along other means of heat exchange. Hot gas will go up but will also spread the heat around so it equalizes pretty fast.

Thank you for your answers
I say that because I am doing tests with temperatures that increase slowly and the bottom of the room is often warmer at the bottom than at the top.

Same for the pressure of the gas that must be higher at the bottom than at the top, off one often finds oneself with mixed pressures at the top and bottom
 

Spoiler

Merci de vos réponses
Je dis ça car je fais des testes avec des températures qui augmentent doucement et le bas de la salle est souvent par endroit plus chaud en bas qu'en haut.

Pareil pour la pression du gaz qui doit être plus élevée en bas qu'en haut, hors on se retrouve souvent avec des pressions mélangées en haut et en bas

 

[ISAWHIM]

Gas is heavier than a vacuum. "Space". Our atmosphere doesn't expand to fill the void of space. It is attracted to the gravitational pull of the nearest largest mass. Solids fall fastest in a vacuum, as does water, gasses and plasma. That is how vapor extractors work. They create a vortex vacuum and all the "matter" that was suspended in the air, falls down. All of it... Gasses are just smaller, suspended, solids. They are still solids. We just identify them at gasses, on earth, at these temperatures, at these gravitational atmospheric pressures, among other suspended solids.

In space, gasses "huddle together", as do solids, plazmas and liquids, because of the mass-attraction to one another. (Also ionic attraction to the "same elements". Which is why everything is not just a "grey-blend" of everything, in the universe.)

In any event, that has bugged me too. Everything should be "gravitationally bias". EG, a pump on the ground should be required to create a "total vacuum", as being in the air, it will never pull the gasses UP from the ground, as it reaches the point of being a "total vacuum". (I can live with that being the way it is. But it still bugs me. Mostly the heat not rising and cold not falling issue, as well as taking DAYS for air to diffuse pressure. Not passing through ladders and wires and holes well, and no ability to "mix" with other elements in a "block".)

[Sasza22]

1 hour ago, ISAWHIM said:

Gas is heavier than a vacuum.

Everything is heavier than vacuum. Vacuum is literarly nothing. The thing is that gasses behave in a certain way. Gasses don`t leave earth because of the gravity but asteroids don`t have atmospheres. Their gravity is too low for that. The asteroid the game takes place on has the gravity of the moon and can`t hold an atmosphere on it`s own. That`s why you need to keep air sealed uderground.