Dialing a space gate.....

[tombombadil]

how come when they dial a space gate in atlantis everything doesn't get sucked in? you'd figure because there's no air in space it would act like a vacuum when you dial a space gate...

[Sealurk]

Stargates are intelligent, they know when something's trying to push through the event horizon actively, and when there's just high local pressure, like underwater.

[tombombadil]

Stargates are intelligent, they know when something's trying to push through the event horizon actively, and when there's just high local pressure, like underwater.

but when they blew up the sun, that wasn't trying to go through the wormhole....something(the black hole) on the other side started pulling it's matter in.....much like a vacuum would....

[Sealurk]

but when they blew up the sun, that wasn't trying to go through the wormhole....something(the black hole) on the other side started pulling it's matter in.....much like a vacuum would....

I think in that instance, the black hole was essentially a special circumstance - we saw the effect it had on the SGC's gate.

[Sealurk]

Plus, at the time, the gate was travelling into the star at a fair speed, and the combination of immense heat, immense pressure (even though the gate had a force field around it), high gravity and the speed the star's matter would have hit the event horizon would "convince" the gate the plasma's trying to get through. And there's a whopping great collapsed star on the other end of the wormhole, which always helps.

That, or the writers were more interested in Carter blowing up a star than paying attention to established wormhole physics.

[thekillman]

youre asking
"why doesnt air rush through the gate"

been there, done that. tons and tons of explanation in a similar thread. answer is:
atmospheric pressure only works, when there's direct contact. there's no direct contact via the gate. basically, the gate is a hole, but water or air doesnt flow through, because ?*ts not in contact with the other side. you'd have to get a pump to let the air flow through

[EternalAlteran]

A gate only works one way for anything but EM waves. If you were to dail from atlantis air doesn't get sucked in because the gate doesn't act on the vacuum and there are safety measures. If you dail from space nothing get's sucked because it works only one way and you can't suck a vacuum. Also for air to pass through the gate you have to blow it though, probably with a lot of force.

[Guest750]

and gravity.

[Thermi]

This was explained in watergate, the stargate puts out a force equal to that of the enviroment, however when an object passes through the gate allows it to pass through, somthing to do with sensors

[thekillman]

and explained in a ton of different threads with the same question

[supersoldier34]

it was explained in Watergate and several other threads

[thekillman]

which is what i said

[x303]

watergate the assumption was the gate has a built in detection which stops thats from happening but also it might of been becoz the water was sentient.

im going with the stargates built in pressure detection. and the only reason why blackholes have any affect on it, is becoz of its massive gravitational pull. blackholes affect everything.

the sun also affects the wormhole. but i think the reason why the suns matter got sucked thru the gate was becoz a blackhole was on the other end. dial it 2 a regualr gate and the same thing might not happen.

[Guest750]

Apart from the planet of the receiving gate getting toasted. Mmm... Toast...

[=SGA=Jason_Binn]

its because that thing they explained in watergate, lik the environment doesnt affect it