Questions tagged [technology]

For questions about the creation, use, and application of all types of technology.

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3answers
126 views

Underground Base [on hold]

If I had a huge underground bunker powered by generators and the generators failed, would it be warm enough underground to keep people alive? How deep would it have to be for people to be comfortable ...
32
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22answers
6k views

How can an advanced civilization forget how to manufacture its technology?

My alien civilization is highly advanced. Their ancestors created wondrous things from medical devices that can cure nearly anything to warships that can defeat nearly any enemy. The problem is they ...
-12
votes
1answer
208 views

Are laser sharks feasible? [closed]

idea Sharks with lasers that blast through the ocean! Yeah! Could it work though? I am looking for some weapons to place on my sharks with fixed weapons on their heads. How feasible is it to ...
0
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0answers
43 views

Does anybody know of a site, podcast, Youtube channel, blog or something else that postulates a future tech every week? [on hold]

I'm looking for an amateur site that talks about a creative future science, tech or concept at least once a week and it must be ongoing. I already watch Isaac Arthur and John Michael Godier as well as ...
16
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26answers
4k views

Limit computation technology in a futuristic society

I'm wondering what kind of events or limitations would be needed in a science fiction society hundreds of years into the future in order limit computational advances to the level of the early 70's to ...
4
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6answers
581 views

Steampunk helicopter

In an alternate reality scenario that takes place during the renaissance, how can the world create a helicopter? Aside from the obvious need for machines, factories, and aviation knowledge, what other ...
0
votes
0answers
51 views

How might early electrical technology develop if humans had an electric organ? [on hold]

My hand-wavy magic is that humans can discharge from an electric organ, similar to an eel. I'll go with the eel's generation of up to 600 volts and 1 amp, and they can control the amount of voltage. ...
7
votes
3answers
985 views

Bronze Age Underwater Civilization

I was thinking of an alternate history, in a part of a civilization, living along the Eastern Mediterranean, during the Bronze Age moves to the sea floor to found an underwater civilization. They ...
7
votes
4answers
726 views

Gauss vs Gyrojet

Something I'm working on involving human soldiers in the future- I'm trying to decide whether hand-held rail guns or gyrojet firearms would serve as better weaponry, which advantages/drawbacks one ...
4
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5answers
238 views

Minimum Required Superscience to Make Mecha Competitive vs. Tanks [closed]

Most discussions of mecha viability seem to give advice in the vein of handwaving laws of nature or making the audience (readers, players etc.) not look too closely at the justifications. I'd like to ...
9
votes
12answers
2k views

What would be some ways to store heat / cold?

I am imagining a story where people store heat in the summer for use in the winter and store cold in the winter for use in the summer, unleashing the appropriate temperature when needed. But without ...
1
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3answers
337 views

How can advanced aliens overclock our Sun?

Space-faring aliens visit planet Earth for a holiday to enjoy some soothing sunbathing in Hawaii. They complain that there isn't enough bright sunshine after waiting for the Earth to be at its closest ...
11
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8answers
3k views

Low-tech inertial dampener options

As mentioned in this discussion: How to keep humans pilots instead of AI in sci-fi future? the ability to handle G forces is a limiting factor on what pilots can do. Some of my solutions to address ...
8
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15answers
4k views

How to supply water to a coastal desert town with no rain and no freshwater aquifers?

Think Tatooine in climate, but with oceans. Here are a few restrictions due to setting: There is modern technology, but not too much electricity ie no super high amperage machines. Population is ...
6
votes
3answers
139 views

Making techology for a society on other planet

I am having some trouble reasoning out some ideas, if any of you could help. So I have in mind a planet, where there are many human cultures, but one of them is more advanced then others. So they ...
9
votes
8answers
5k views

Why did the “Orks” never develop better firearms than Firelances and Handcannons?

The Orks of my world are actually the technologically most advanced civilization. They are bigger and stronger than humans, have bone plates on their heads, greenish skin, and are more akin to the ...
9
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7answers
990 views

What near-future propulsion system(s) could be employed by my spaceships?

In a near future setting I am working on, humans have built space-habitats and have established colonies on celestial objects such as Luna. Their spaceships cannot go faster-than-light and have their ...
14
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3answers
2k views

How big should a terrarium be to be self-sustained?

I read some time ago about terraria (singular: terrarium), which are basically small ecosystems of plants, isolated from the outside world (they get just energy from outside, not water or oxygen). The ...
6
votes
8answers
395 views

What limitations can I put on wings for more tense/risky action scenes?

This is my first post on Stack Exchange, so I'm not sure if this follows the right format. Let me know what I can change to make this more helpful on the site. Anyways, let's get to the backstory of ...
4
votes
6answers
426 views

How can an optical signal be converted into a mechanical/acoustic signal without using electricity?

There are several ways to directly convert acoustic/mechanic signals into optic signals (e.g. opening/closing a shutter, or the acousto-optic effect). Is there any way to do the reverse, without using ...
9
votes
8answers
455 views

Pre-electrical fast long-distance communication using Acoustic Mirrors

It takes a lot of work, but it can be done. The Mongol Yam, a horse-based mail system, is probably the best example that has been done before. But after visiting the local science museum recently, I ...
5
votes
6answers
355 views

Closed off habitat surrounded by extreme heat, is it impossible in the long term without handwavium? [closed]

High-tech Ents foresee a calamity befalling their beloved and treasured green planet. Surface temperatures will rise well above 500 Celsius (arbitrary, basically just very hot) for thousands of years, ...
2
votes
6answers
187 views

Why would less-bright meteors be more valuable to spot?

Imagine an agency/company has been set up to track meteors (shooting stars) in pursuit of profit. I need to provide a motivation to upgrade their sensors + equipment over and over again — pouring ...
4
votes
6answers
396 views

How do I Create a Privacy Shield?

I don't trust anyone when I conduct my special line of business. I do my thing, face-to-face, verbally. I hand over a sealed envelope of cash and I'm done. I don't want to be recorded, I don't want ...
-1
votes
10answers
740 views

What terrain would give an all-female army the advantage over a traditional army in the ancient world?

The Island of Themascyra is a nation inhabited by amazons, a race of all-female (biologically) militants. These women train from birth to be warriors and are well trained in the ways of combat. ...
4
votes
3answers
3k views

Can we build a 3D maneuver gear from Attack on Titan?

Context In the animé Attack on Titan, armed forces use a special device called 3D maneuver gear (also called vertical movement gear) to move through the air. The system is based on a pair of ...
41
votes
17answers
9k views

How would modern naval warfare have to have developed differently for battleships to still be relevant in the 21st century?

So basically, battleships are awesome. I am interested in creating a setting where they were never superseded in their role of long-range command vessels and fire support by aircraft carriers, ...
7
votes
5answers
2k views

Is making bullets from scratch possible?

In my world a a several members of the US Armed Forces get transported to a medieval world. They have only a limited amount of resources and they must find a way to replenish their supplies. ...
4
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0answers
109 views

What would need to be different from Earth in order to make mecha a viable aspect of warfare on a planet? [closed]

There are lots of great questions and answers on this site about how and why bipedal mecha are near useless on earth, and why spiderlike mecha could perhaps have some niche uses which are unlikely to ...
1
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0answers
46 views

How many people can you feed per cubic meter? [duplicate]

With top notch existing technology (need not be currently industrially used, existing research application sufficient) and no regard for (external) ecology, economics or politics, we'll build a ...
27
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12answers
5k views

Is there any way to truly hide a spaceship?

Space is two things: empty and (mostly) dark. This makes it really, really hard to hide in it, because to do anything in it, chances are, you'll be shining a big bright light through it. Even if you'...
0
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5answers
669 views

Why make androids self aware?

In my world, automation reaches a new level with the introduction of androids. Robotic human beings capable of doing any job a regular person can. The concept of these androids is that they can be ...
16
votes
5answers
3k views

Is it possible for underground bunkers on different continents to be connected?

In a scenario I'm thinking of, the Earth has been nuked bare and a few remnants of humanity are surviving in their underground bunkers. Let's say there is one in North America, one in Central American,...
25
votes
27answers
8k views

Is it possible to have battery technology that can't be duplicated?

I'm creating a near future world where one faction is using high energy density batteries that enable their vehicles to outperform gasoline based technology. Like cold and silent aircraft and ...
24
votes
13answers
8k views

Can there be a single technologically advanced nation, in a continent full of non-technologically advanced nations?

The run down here is that there's this continent, and there is a lot of unclaimed land where countries haven't formed yet and a lot of tribes but there are some actual countries like kingdoms, (where ...
6
votes
1answer
85 views

Could a split cycle intercooled flamelicker have been a viable power source?

Flame lickers work by sucking hot air into a cylinder and then relying on the cooling of the air by the cylinder wall to create a partial vacuum to pull the piston back. see video In an alternate ...
51
votes
14answers
10k views

Would a steam powered plane be able to cross the Atlantic ocean?

In a world where the development of internal combustion engines had been seriously delayed (for whatever reason), would it have been possible to power heavier than air aircraft by steam propulsion? ...
13
votes
9answers
3k views

Medieval flying castle propulsion

One day, on the faraway world of not-medieval-Europe, someone discovered that a type of stone could be made to float. A decade or two later, there are flying castles, built out of and/or on a ...
14
votes
10answers
6k views

What are the power options for intelligent humanoid robots?

In my future setting on Earth (or an Earth-like planet; haven't decided), the fields of robotics and AI have taken off and we have intelligent, ambulatory robots. (They were initially thought of as ...
41
votes
20answers
9k views

What could be the right powersource for 15 seconds lifespan disposable giant chainsaw?

Imagine when a jet fighter swoops in to drop a 400 pounds giant chainsaw to you just so that you can use it to grind down one problematic enemy into a pulp then discard it a foot away from you. What ...
3
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2answers
114 views

Handmade metallic cartridges [closed]

Could a group of survivors resupply metallic cartridges with hand-operated tools to be used on small arms in their shelter? What would those tools be and how usable are these handmade cartridges? ...
3
votes
3answers
311 views

Ballistics of a 19.25mm revolver

A lead off from my last question, the actual ballistics of the round. I've learned from the last question and ran some numbers and come up with a basic idea for the ballistics of the revolver. Lead ...
5
votes
7answers
400 views

Feasibility of extraterrestrial metals?

In a sci-fi universe where man has the capability to leave our solar system would metals or alloys above and beyond our own be possible? Or at least within the bounds of reasonable possibility? As the ...
3
votes
2answers
133 views

Humans meet a distant alien species. How do they coordinate? - Computers [closed]

Part of a series addressing the challenges of a mutual first contact. Previous question here Humans meet some distant alien species. They are mutual first contacts. After learning the languages of ...
7
votes
1answer
175 views

How much energy can I produce per kg of hydrogen using this process?

In the far future the posthuman successors of mankind have disassembled the stars and live on ultra slow and ultra efficient solar system sized computers, Matrioshka Brains. The last enemy of ...
25
votes
7answers
7k views

Could a 19.25mm revolver actually exist?

I'm working on writing a story wherein there is a revolver inspired by Guillermo del Toro's Hellboy's samaritan. My question is; can such a gun, as described below, work? Or would it be a bone breaker ...
1
vote
1answer
77 views

A society built an airship. What else? [closed]

A steampunk society managed to develop functioning airships filled with helium, powered by a steam engine. They mine this helium from an underground reservoir along with other natural gas. What else ...
1
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0answers
51 views

What would be day to day life like, for people during a renaissance like period in a world I'm building [closed]

Like I said, what would people eat, what would they drink, how'd they spend their time. I realise this isn't really a hypothetical question, rather a question that requires some information from an ...
2
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4answers
1k views

What would the proposed advanced civilization be like in the Young Dryas? (12,000 years ago)

It has been proposed that an advanced civilization existed 11-12,000 years ago and was wiped out by a comet strike which hit glacial ice and caused a massive flood. Remnants of this civilization are ...
9
votes
6answers
458 views

Could we build a massive “Ark” type space station with current technology?

Armageddon is coming. A giant Texas-sized meteorite on a collision course with planet Earth is discovered in 2020. It will hit Earth in 2030 and will wipe out 90% of living things including humanity. ...