Questions tagged [technology]

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

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4
votes
4answers
126 views

Can a biological system be used to power an android?

The purpose of this question is to know whether or not organic tissue can be used to power and android. Compared to a nuclear cell or an ordinary battery this doesn't seem efficient, it needs food, ...
5
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3answers
107 views

Cellphone that can cause a human to die [closed]

An evil cellphone factory distributed cellphone units that can cause instant death to a human. It was distributed to every adults in this world. The units will kill its owner by the ff reasons; The ...
9
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21answers
5k views

How can I explain a continent with extremely un-equal progress between its nations?

A long-running concept I have for my fantasy continent of Diggoran is its isolated and unequalized technological and industrial progress. By ''isolated progress'' I refer to the fact that Diggoran's ...
0
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1answer
129 views

Tongue Keyboard [closed]

It is fascinating (and perhaps a bit scary) anticipating the human-technology interface in the next hundred years or so based on the acceptance of mobile computers in recent years. Based on current ...
6
votes
1answer
370 views

Building an “animal punk” nation

With a group of friends, we are trying to build an RPG in a quite specific setup which I have a hard time to find elsewhere in order to get some inspiration/information. So what I mean by that is: a ...
16
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6answers
10k views

Is it necessary for spaceships to include reverse thrusters for deceleration in space?

Set in the not so distant future, space travel becomes commonplace but is limited within the heliosphere. I'm thinking since it is fuel efficient and more economical to use gravity assist to slow down ...
6
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1answer
627 views

Is this a plausible interstellar propulsion system?

Interstellar travel is hard and complicated, yet I want to have a plausible interstellar propulsion system for my setting. Rockets are out because of the rocket equation and the horrible top speeds ...
-2
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1answer
60 views

What would your world be like if people can stop being hungry all the time without eating? [closed]

Suppose we can live in a world where you don’t have to eat to survive, what would that world be like? Can it change worldbuilding?
9
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4answers
382 views

Can korean bolt throwing cannons not be a dead end?

Alright, this will take some time to explain. There is historical context to my question. Over the course of the period of time from 16th century to the first half of 19th century, the European ...
2
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4answers
292 views

faster than light speed travel, but not too much faster

A friend of mine is writing a hard sci-fi novel about interstellar colonisation. He wants to use the real Earth and the surrounding stellar neighborhood. The plot requires that the initial voyages ...
4
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3answers
172 views

Urban design that counters shapeshifters?

Set in the present day Shanghai, China. Humans co-exist with another intelligent species with the ability to shapeshift at will, the shapeshifters like to morph into various objects (both animate and ...
2
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3answers
120 views

What is the most efficient way of mining energy from a flare star?

Set in the distant future, human is transitioning to a type 3 advanced civilization on a Kardashev scale in about a hundred years or two. We have nearly exhausted the energy from our Sun and several ...
6
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2answers
152 views

What modes of transportation and vehicles would humans with echolocation and no sight produce?

In this world homo sapiens lose their eyesight but have the ability to sense the surrounding with biosonar similar to whale and dolphin, I wonder if we could have discover electricity but suppose the ...
22
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4answers
9k views

How to tell if the entire Earth is just a copy?

Imagine a visiting alien accidentally spilled a bucket of inverse matter (a substance I made up just now) on the planet Earth and this stuff will annihilate with ordinary matter to produce neutrinos ...
7
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3answers
186 views

Would Mind Uploaded People on Fast Computers have any Unique Skills or Knowledge?

In my setting, there are basically no biological life forms left, as everyone has either been mind-uploaded or is an artificial intelligence. It is supposed to take place at a very distant point in ...
2
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3answers
125 views

How to tell it is a relativistic kugelblitz instead of other photonic attack?

Set in a quite distant future, intergalactic war is brewing and it is important to tell what form of attacks the enemy ship is using otherwise the battle will quickly become one sided. Anyway imagine ...
4
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4answers
232 views

How can a nation today become a super power without any nuclear programme?

I suspect being economically strong and independent aren't enough to become a super power in today world, I realised that US is slowly losing it's grip as a super power after it starts shifting focus ...
13
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9answers
6k views

How to tell a blackhole from a neutron star covered entirely by Dyson sphere painted in vantablack?

In a galaxy far far away... M6760 (I made it up) is an unusually massive neutron star billions of light years away and it is surrounded by a spherical Dyson sphere painted in new improved formula ...
11
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6answers
3k views

What is a good reason not to mine a planetary ring?

Most planetary rings are rich in water in the form of ice, especially now we are running low on freshwater reserves on Earth. Imagine someone discovered a huge chunk of meteorite consisting of a ...
3
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2answers
87 views

Overclocking VR

Set in the immediate future, social network evolves with the advancement of 10G network and a major breakthrough in medicine. Giant tech companies raced to develop state of the art VR technology which ...
2
votes
1answer
89 views

What would our world be like without zinc? [closed]

Suppose that we evolved on a planet entirely without zinc. How would our civilization be different if we didn't have access to this metal? What alternatives would we develop? What technologies would ...
5
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3answers
171 views

Living machines. At which point can machines be considered a life form or organic?

I found this definition of life. Life is a thing that can adapt to its environment, grow and replicate. But mechanical, electrical, and electro-mechanical machines are never called alive. People ...
4
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3answers
1k views

How could a medieval melee weapon slice through ankylosaurus?

Set in the early 14th century A. D. the sudden appearance of dinosaurs wrecked havoc on the world, no one know why but everybody raced to come up with powerful theories except for a particular group ...
2
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2answers
64 views

How do the Martians prevent salinization of their canal network

In a previous question I asked if a world similar to that envisioned in the Mars of Edgar Rice Burroughs / H G Wells could exist? And if so would canals be a practical way to make the planet habitable ...
3
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2answers
131 views

Manufacturing a new propulsion method mid journey

I have an interstellar ship going from earth to a nearby star system using current technology and chemical fuel. The ship has been created and is being managed by a self sufficient android. The ...
-1
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4answers
134 views

Non-intrusive way to block cellphones from recording video at a public recital? [closed]

Principal Noyoucantdoit is a man of absolutes. Maybe he's a Sith, some kids do make that parallel. But that is just noise. The Christmas recital is coming and with it comes the ban of the back row. ...
24
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20answers
10k views

How to prevent humanity from using alien spaceships and technology exclusively?

A long time ago, far far away, in the distant future of this galaxy, (don't think about that too hard) aliens created links between star systems enabling interstellar travel to occur within a day. Now ...
4
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5answers
5k views

How to optimise the use of 10 nuclear fuel pellets in medieval period?

Suppose 10 standard nuclear fuel pellets have been sent back in time to the 14th century A. D. scattered across 10 adjacent towns via a disposable time machine. Would people in the medieval period be ...
7
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3answers
230 views

How can I create long fall boots?

The long fall boots are special footwear that extend from your feet to your knees. They enable you to fall from an indefinite altitude in Earth-like gravity without damaging your body when you land. ...
5
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3answers
189 views

Ways for advanced civilizations to mask communications on an interstellar / intergalactic scale

Say we have a civilization on the verge of becoming Type II, and are in the process of building a Dyson Sphere. They are aware that in the process, and especially after completion, there will be ...
1
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3answers
190 views

How to mine a moon made of half uranium and half radium?

Imagine one day the moon suddenly transformed into a colossal elephant's foot and we need to get to the moon to obtain sample... Could it be done using modern day technology to mine the uranium for ...
8
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1answer
1k views

Can transistors be made in the stone age? (Spoiler: Dr.Stone)

WARNING: This post contains some spoilers for the anime/manga Dr.Stone. As I'm watching Dr.Stone, I see Senku and the gang trying to make vacuum tubes for their circuits. The vacuum tube is an ...
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1answer
150 views

Just how powerful can Zero-Point Energy be, if it was mastered? [closed]

So, amongst multiple forms of energy production, Zero-Point Energy (or Vacuum Energy) is less often mentioned about. As of now, it is most commonly theorised to be best used for batteries that never ...
1
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4answers
169 views

What would make mana-batteries an unsuitable alternative to mages combining their power?

Orgone, also referred to as Mana, is the conduit through which the power of the cosmos flows, focused through a sorcerer's will. Ritual practitioners must draw on this reserve of power in their souls ...
2
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2answers
146 views

Can a liquid mercury pistol flamethrower exist?

The Cold War just got a whole lot hotter. Ordinary 20th century flamethrowers are, let's admit it, huge. Covert operations, especially in urban settings, would not stay covert for long, if our custom-...
12
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10answers
488 views

How to make FTL-technology an narratively interesting suicide-pact-technology?

Building my sci-fi setting deciding what's the in-universe answer to the Fermi-paradoxon, the reason why the universe still seems to be empty of K3 civilisations despite its age, has been quite ...
6
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3answers
188 views

How to travel between “Little Prince” style planets without high technology?

Some advanced human civilization built a large, 6,000 km diameter gravity balloon and filled it with a breathable atmosphere as well as small, rocky bodies with radii of ~200 meters and masses of ~$6 \...
2
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5answers
439 views

Can flak be practical in an age of laser fighters?

In this article, laser fighter jets would be relagated to sub sonic speeds and fly low to avoid being shot at. That would mean that they would be closer to the ground and thus be more vulnerable to ...
6
votes
7answers
318 views

How would a Stone age society make use of gunpowder?

Given that the main ingredients for gunpowder(Charcoal, Saltpetre, and Sulphur) exist in varying quantities pretty much everywhere, I've been wondering how it wasn't discovered much sooner than the ...
-8
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3answers
114 views

Night sky when man-made light sources are made obsolete. Would the night sky still be affected by light-pollution?

Im creating a world where for whatever reason all power on Earth is gone. Meaning there is no more man-made light. Which also means no more light pollution. Would the night sky revert to its former ...
1
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2answers
172 views

Recreating dragon fire

In Anne McCaffrey’s series 'The Dragonriders of Pern', she describes her dragons chewing on rocks containing phosphine — a chemical made of one phosphorus atom and three hydrogen atoms. In gas form, ...
-1
votes
1answer
72 views

Modification of a standard cannon to project water instead of iron ball?

Cannonballs may be a thing of human warfare past, but it is not difficult to imagine the sense of dread at seeing a 40-pound metal projectile headed toward your ship, unable to tell for a few ...
8
votes
9answers
2k views

In a decadent galactic empire with instantaneous communication, how would the most remote planet gain their independence?

In a very large and decadent galactic empire (think of Asimov's foundation empire), a new technology leap allows planet's government bodies to communicate instantaneously across the galaxy. It can be ...
4
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7answers
2k views

Why don't military spaceships use blockchain technology for ship log? [closed]

Straight to the point, cut out the backstory: If blockchain is so secure and difficult to hack why don't the military spaceship use it for logging important and also non essential events, navigation, ...
3
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4answers
185 views

Why would a technologically advance space-faring civilization still use physical currency?

In this world human civilization has reached the stars and now spans across multiple galaxies. Technological advancements such as neural implants, FTL travel, and FTL internet access are ubiquitous ...
2
votes
2answers
250 views

How to get attention when being shrunk to size of a flea? [closed]

One evening a group of teenagers got arrested for taunting a queen's guard and was brought to a temporary holding cell, all of a sudden a radioactive mosquito seemingly escaped from a nearby lab bites ...
2
votes
4answers
167 views

How can entrance through an open doorway only be possible from one side?

In the beginning, the universe existed as one, where humans and their gods lived among each other and existed within the same realm. Due to an ancient war, dubbed " The War in Heaven", circumstances ...
4
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3answers
126 views

How could Intra-mundane travel be made impossible with wormhole technology?

The gods of this world created a Dyson sphere which is 22.5 times the surface space of earth. It is divided up into 9 sections, or "realms", which are self-contained worlds that humans live in. These ...
14
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4answers
4k views

Hammering under water?

Long before you get to using fire to smelt metals, hammering is a much more fundamental requirement for basic technologies. Hammering lets you Flake stones to make stone tools Process food--grinding ...
8
votes
5answers
1k views

What transportation for snow city?

Set on an icy world where weather forecast is alway blizzard everywhere, I am wondering how do modern day people commute if everywhere are buried under several miles of snow? What kind of ...