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Questions tagged [vacuum]

For questions about vacuums and partial vacuums or spaces largely devoid of matter, and/or their effects.

6 votes
4 answers
2k views

Airtight beaks?

I have a (moderately) hard sci-fi, in which there is a species (the Bethin) who are based on squids. They have the biological equivalent of a space suit for their skin, and use the mantle cavity as an ...
Blue Skin and Glowing Red Eyes's user avatar
4 votes
15 answers
3k views

What type of security measure/contingent conditions could make jumping into a portal impossible inside a laboratory?

I am writing a spy-adjacent story where one of the characters is able to open and close portals that teleport them to a set number of known locations. There is a moment in which this character tries ...
Elsie's user avatar
  • 289
2 votes
3 answers
326 views

KBC Void Stupendously Massive "Vacuum Hydrogen" generators- How to convert the Anti-Hydrogen into Hydrogen?

So, let me get this straight right here. According to Wikipedia: "The KBC Void (or Local Hole) is an immense, comparatively empty region of space,...... The underdensity is proposed to be ...
Alastor's user avatar
  • 3,422
9 votes
3 answers
3k views

If someone was suddenly subjected to a vacuum would they sh*t themselves?

If someone has the magical ability to make a vacuum(no or minimal matter/atmospheric pressure) on earth around someone would that person in the vacuum then sh*t their pants? If so would it have to be ...
Woli's user avatar
  • 415
6 votes
1 answer
1k views

Tractor Beam using a vacuum cleaner?

Would a tractor beam consisting of a powerful suction force be usable as a method of grabbing targets at a maximum range of about 10yd? This is obviously only applicable when not in the vacuum of ...
zevythegreat's user avatar
3 votes
2 answers
714 views

A Massive Organism Living In The Vacuum Of Space

Okay, here me out: I am designing an massive, kilometers-long at the absolute minimum, creature that lives in asteroid belts in the vacuum of space. It hosts an entire ecosystem of living things like ...
Tyson Dennis's user avatar
15 votes
9 answers
4k views

How could people survive teleporting into the atmosphere while surrounded by vacuum?

In my planned fantasy story, the protagonists must escape a dangerous situation by teleporting the ship they're on (a kind of steam-powered ocean liner) into outer space, then back to the ocean ...
Skallod's user avatar
  • 331
-1 votes
1 answer
147 views

How long would (dry) food in a glass jar survive in space?

Say you eject a jar of jerky or something through the airlock of your space ship. Does the lid pop right away due to the vacuum? Does the food get so much UV it gives you cancer? (Does that depend on ...
unhammer's user avatar
  • 117
1 vote
3 answers
90 views

Will my hull change neutralise the effects of discharging projectile weapons from a space ship? [closed]

There have been many SF stories about how to neutralise the effects of discharging projectile weapons in an enclosed spaceshp environment. My basic solution to a 9mm or .45 inch hole is to have one or ...
Grumpy Shite's user avatar
3 votes
1 answer
540 views

Human Eye in a Vacuum

In my short story, an astronaut is in Earth orbit doing a spacewalk in your standard variety spacesuit and is just about to enter airlock back into the ship. However, just as the airlock door finished ...
Lotana's user avatar
  • 33
5 votes
5 answers
915 views

Communications in a vacuum

We have a human, magically protected so they can function in a vacuum. How will they be able to communicate? (The closest equivalent of suit radios--except they aren't wearing a suit.) I would think ...
Loren Pechtel's user avatar
0 votes
4 answers
234 views

Damage caused by a bomb capable of deleting everything within a 20 meter radius

What kind of damage could a bomb that cause everything within a 20 meter radius to just vanish have within the Earth atmosphere? I would imagine that it would create an implosion and inflict immediate ...
Herbertsnick's user avatar
2 votes
1 answer
219 views

Maximum survivable time in the vacuum of space for an average human being [duplicate]

Suppose my character doesn't wear any kind of protection and is an average human being and the transitions from normal atmosphere to vacuum and back are instant. Further suppose that my character ...
Cookie04's user avatar
  • 543
-4 votes
2 answers
68 views

How much energy an active structure would need to be a vacuum balloon?

In this question here there is an answer telling that it would be possible to make a vacuum balloon using superconductors, however, we are nowhere close to a room-temperature superconductor. Assuming ...
Fulano's user avatar
  • 293
4 votes
3 answers
191 views

One-man Fighter Craft Maneuverability

Looking to design a one-man fighter craft (using CGI) for space-based combat. To be at all useful in such a role the pilot must be able to turn the craft. There are three axes of rotation involved in ...
EvilSnack's user avatar
  • 2,418

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