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Questions tagged [stealth]

For questions about the prevention of detection of objects, whether artificial or natural.

24
votes
12answers
7k views

Can an escape pod land on Earth from orbit and not be immediately detected?

I'm writing a soft scifi novel that has its fair share "fi" but every now and then I feel it important to acknowledge some "sci." In this scenario, a spaceship is in orbit and about to land on ...
2
votes
6answers
214 views

Stealthy and hard to sink marine drone made out of… fiberglass and styrofoam

OK, the weapon idea is the following: general shape similar to the drone on this picture modular armament, in default configuration with anti-ship missiles (but goes with torpedos, gun, mines, etc.) ...
7
votes
8answers
325 views

Self-charging PCP Airgun

In my story idea the main character is given a PCP airgun with a sort of self-charging mechanism in order to commit certain covert operations by assassinating certain individuals. (Don't ask, he was ...
2
votes
4answers
188 views

How could gods/deities have been on earth controlling natural phenomenon, and have remained nameless? [closed]

To extrapolate, these gods/deities can be seen and are in some kind of physical form or another (perhaps they possess living creatures or just create bodies of their own). They are essentially ...
8
votes
7answers
471 views

A possible solution to stealth in space

I'm sure most worldbuilders will have heard the aphorism that in space "Everyone sees Everything", or that "There Ain't No Stealth In Space". I'd like to propose a possible solution to this. The ...
2
votes
4answers
253 views

Why would anyone light campfires in The Zone of Alienation

The game The Zone in S.T.A.L.K.E.R. is set in modern day Ukraine and Belarus. In the story, a power surge at a research facility causes the explosion of a reactor. The area around the site is ...
0
votes
3answers
239 views

Help my Assassin Kill His Target [closed]

This normal looking man here is called Sam, and he’s about to kill a VERY important person whose death will bring about a great war. This would-be assassin is posing as an Alliance guard, face lift ...
8
votes
5answers
1k views

How could an alien mine exist under a planet's surface without humans detecting it from above?

Imagine a human observation and research facility being built on a planet in a distant solar system. How could an alien colony exist beneath the planet's surface, staying completely invisible to ...
38
votes
14answers
12k views

The gun which makes no sound

Is a gun which produces no sounds within the human range of hearing possible? I know of a couple issues: Most bullets move quick enough to make a whistling sound, but I may be incorrect in that ...
0
votes
1answer
85 views

Would combining thermoelectric cells and electronic warfare reduce chances of a ship being detected?

In the science fiction setting I'm working on, I had a thought on how to reduce the detection ranges in space. On a previous question, I suggested the idea of capital ships and other support ships ...
5
votes
3answers
185 views

Any stealthy methods of tracking vessels at sea before advent of RADAR?

Clearly, I don't mean simply keeping eyes on a target ship -- unless of course there was some method by which one ship could remain within visual range of another without being seen by the target. I ...
1
vote
3answers
163 views

Room-Temperature Animal

Remember the Xenomorphs from aliens, how they didn't show up in heat vision? I was wondering how you could recreate that effect biologically... a creature which doesn't pop-up on IR (at least, not ...
12
votes
13answers
3k views

High Speed High Tech Stealth Transportation in a Medieval Setting [closed]

In a medieval technology level Earth like world, a small widely dispersed group of individuals have access to technology at a level comparable to our near future (mid 21st century, hard science). For ...
0
votes
3answers
159 views

Ninja versus the Alien Invasion! [closed]

What would make ninja valuable in defending humanity from an alien invasion? Imagine a scenario like that of XCOM (old or new), Xenonauts, Phoenix Point, or other various Alien Invasion stories: the ...
4
votes
4answers
5k views

What's the stealthiest way to knock someone out? [closed]

A sneaky character needs to incapacitate someone. It's a sensitive situation, so this must be done quickly, quietly, and reliably. The target is a healthy human adult. Killing the target is highly ...
1
vote
3answers
251 views

Can a group of people be trained to look and act identically so that a computer could not tell them apart?

Modern day image recognition is getting pretty sophisticated, such that people can be easily identified by cameras and automated systems. If I recall correctly, even the way a person walks can help ID ...
0
votes
5answers
267 views

Would a tank with a cloaking device be pointless? [closed]

I know it could probably fire the first shot without the enemy seeing them but after it starts firing, would it matter that it's invisible? Would it be harder to hit or would it be easy to just figure ...
22
votes
10answers
5k views

Moving stealthy in an hostile enviroment

I'm in the middle of sketching out a new story, settled a post-apocalyptic version of our present. The main feature of this enviroment would be blind, mindless, aggressive and contagious versions of ...
21
votes
12answers
4k views

Ways to hide an elven city

How could a large (10,000-20,000 people) elven city hide itself from a person wandering through? These elves can bend plants to their will and stimulate plant growth by singing, so they could live in ...