Questions tagged [technology]

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

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votes
7answers
924 views

The Project Sahara V2

Edit: A bounty was offered; Later, I answered my question - see below the looong math answer. I accepted it, because it's the only one to calculate the outcome with all the parameters included. I'll ...
7
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7answers
369 views

Alternative for magnetic boots

In many sci-fi settings magnetic boots are used to help astronauts walk in microgravity. However, not all materials are ferromagnetic. Titanium, aluminum, the most form of carbon and silica can not be ...
6
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9answers
887 views

Anachronistic things built with medieval technology

In Back to the Future III, there is a scene where the professor has built an ice cube maker with 'wild west' technology. I'm not actually sure if that's possible, but given a solid understanding of ...
6
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3answers
455 views

How must computers/telecommunication deviate from reality for a retrofuturistic setting?

. I love the aesthetics of retrofuturistic settingsand I aim to build my own. A mixture of a fantastical, Thundercats(2011),Outlaw Star x Star*Drive. How yesterday saw tomorrow is quite fascinating ...
6
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3answers
1k views

Production of ammo in post-apocalypse - problems and solutions

First i'll introduce the settings, it's the same one as for my previous question (about currency). It's happening in post-apocalyptic SE Europe (Balkans specifically), about 60-80 years from now. ...
6
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10answers
2k views

How to build a tsunami proof island city?

Igbi Island, a remote island located in the middle of the South Pacific Ocean, is notorious for its extremely powerful megatsunamis, huge, deadly waves averaging 500 feet (≈ 150m), but sometimes ...
5
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10answers
2k views

What prevents magic from being used scientifically? [closed]

In a fantasy world that behaves like our world where the same basic laws of physics, chemistry, etc. apply, except for the addition of magical abilities and forces - what prevents magic from being ...
5
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12answers
3k views

space-born ship-to-ship combat 150 years from now w fission/fusion tech

Let's assume 150 years from now Mankind has really made the leap to space, and there are a bunch of colonies spread perhaps over a radius of 2 to 3 solar systems (where Sol is the center, i.e. a total ...
5
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2answers
445 views

Could a Tidally Locked Moon Ever be “Unlocked” via Artificial Means?

Premise The motivation as to why one would want to give a tidal locked moon a spin is out of the scope of this question. I only want to focus on the feasibility. Suffice to say there could be a few ...
4
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3answers
714 views

Kinetic energy reflection

I've had in mind for a while now a device that could reflect kinetic energy back onto an instigating surface. For example, a blade-like version of this device is planted in the ground in front of an ...
26
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7answers
4k views

How could a simple submarine be built using 100 BC technology?

I have some ideas, but I'd like my fictional Roman (100BC) General Mikey (ha) to build a submarine(s). This should be able to navigate in lakes and calm shores of the Mediterranean, succeed in ...
17
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8answers
1k views

Personal identification chip installation [duplicate]

In Futurama every person has a chip implanted with their personal details and a predetermined job. On the show the chip seems to be implanted in to one of their hands, and is easily removable. Where ...
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6answers
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Is Ternary a option for a tech future?

I have an idea for a story set in the near future, with a character who breaks onto the global scene with a breakthrough advance in technology that makes him billions. My question is whether or not ...
13
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5answers
2k views

Artificial star?

A long time ago in a galaxy called the Milky Way..... An alien race had its planet thrown out of its solar system. It is now a rogue planet. They survived for thousands of generations in underground ...
11
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6answers
2k views

How could there be underwater thriving city in the medieval age?

I'm writing an adventure story set in the medieval age, our hero came(dived) across an underwater city with an estimated population of several thousands at depth of hundreds of meters below sea level. ...
10
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12answers
823 views

How to explain magical internet

In one of the stories I'm writing, I have a character that falls from our world into another, far less advanced one, and brings his smartphone with him (along with a few other things, but they aren't ...
10
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5answers
1k views

Why would civilizations with advanced technology still use castles?

Despite being awesome marvels and once incredibly important, ever since explosives became a thing, castles have become obsolete. Until now... Imagine two equally advanced civilizations at war. Both ...
10
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3answers
3k views

Boats for really tall people

So I'm writing a book that takes place in an endless ocean with islands inhabited by many races, and I'm trying to come up with unique boat ideas for races; well I have most of them, but I would like ...
9
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8answers
2k views

Airships without huge balloons/gas bags that can still “float” in air, using minimal or no energy

Making a world where you live in the air, as the surface is not survivable (Venus-like) but there are mountains which serve as islands. I'm gonna leave out the story of the planet as it's not ...
9
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12answers
1k views

How would you defend a package from magic Ninjas?

Without boring you with details, in my world, a government is try to protect a package from ninjas crossing over from another world. Technological Bases The technology in this government's world is ...
9
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4answers
7k views

How long will technology (satellites, GPS, Cell Phone) still work after civilization is destroyed?

If a large part of the population was killed, but the infrastructure was basically unharmed (I know it take people to keep things going, but I guess that is part of the question), how long would I ...
8
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3answers
755 views

What effects would moving between areas of different gravity have on a human?

Basically, this is a setting in which artificial gravity generation is possible and can be confined to certain areas with different settings. There are maybe five human colonies on planets with near-...
7
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11answers
4k views

How to defeat the elven insects using modern technology?

In an alternate Earth setting there are two intelligent species at war with each other, they are the humans and the elves. Human technology is an exact mirror image of our current technology, and the ...
7
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4answers
473 views

Could a character survive having a device torn out of their radial artery? + effects

In this society, the citizens are given a bracelet-like device that is connected to the radial artery in their dominant hand. The device monitors their health, offers advice, etc and also serves as a ...
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4answers
1k views

How can we detect a small black hole?

We’re in the late 2020s and we’ve all the planned future telescopes - WFIRST, JWST, Giant Magellan Telescope etc - and technologies. There’s a small black hole in the outer solar system. It has a ...
6
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4answers
697 views

Scientific Accuracy - alien communication ideas

(Disclaimer: I tried this question earlier in the scifi site as well as real science sites, and was told should be on topic here) I'm writing a speculative story about aliens coming to earth - and ...
6
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8answers
1k views

Why would many future interstellar spaceship designs come with a self-destruct button instead of an EMO button?

The year is 2267 A.D. Humanity has colonized Prima Centuari system. A federal government is established; the population is expected to grow at an exponential rate to reach 1 billion by 2300 A.D. A ...
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7answers
1k views

Humans get knocked back into the stone age; would archeologists from 10,000 years in the future be able to tell that we existed?

I am inspired by Dr. Robert Schoc's hypothesis that the Great Pyramid and Sphinx date back to a lost civilization from 10,000 BCE. The Question: Suppose an asteroid/mega solar flare/etc. reduced ...
6
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2answers
266 views

What would a medieval steam locomotive look like?

My question is pretty simple, if the steam locomotive were invented during the middle to late medieval period, what would it look like? We are just going to ignore how it was invented. My guess is ...
6
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4answers
477 views

Which types of firearms would be damaged or broken by a global change in combustion intensity?

I'm wondering what types of firearms would be impacted if explosives and combustion in general were to have a random chance of being more potent or less potent. Could new firearms and/or ammunition be ...
6
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13answers
2k views

How could a civilization with approx. 18th-century technology weaponise mined nuclear materials?

In a nutshell, what are the pre-requisites for having sailing ships fire nuclear cannonballs? The setting is entirely alternate-universe, so the available material can be a lot more naturally "primed" ...
6
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3answers
723 views

The practicality of Wild Dog's arm-mounted gatling gun

In the Time Crisis series of games, terrorist-for-hire and recurring antagonist, Wild Dog has a cannon mounted in place of his missing left arm. Throughout the series, this weapon takes various ...
6
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4answers
2k views

How to make a 'freeze' weapon work?

In a project of mine, I've contemplated an alien species that uses a weapon that shoots liquid nitrogen (or something similar) that makes enemy armour brittle by freezing it. Is there a way they could ...
5
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5answers
364 views

How would a temple be made to last and “Reactivate”?

The loose idea of this structure is in my world a secret society believes the Earth is going to be heavily damaged in the near future by war and that humanity will be pushed to the brink of extinction ...
5
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4answers
376 views

Is there a reliable way to store all stable elements?

This is a follow-up to question about a transmuting 3D-printer Assume you need to store all stable elements in a spaceship. On board, a chemical assembler is used to compose everything, if you have a ...
5
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1answer
415 views

Is the following mission profile appropriate for a manned mission?

My idea was to use 2 stages for an interstellar spacecraft (particularly the Orion Drive) and use it in a way similar to Project: Daedalus. Phase 1 would involve accelerating to cruising speed ...
5
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6answers
747 views

What planetary conditions would make computer and complex electronics useless, or at least difficult to maintain?

What planetary conditions would have to exist to make computers and other complex electronics useless or at least difficult to maintain? Would ionised atmospheric conditions, constant solar flares, ...
5
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3answers
536 views

Can a Robotic Eyeball Be Created that Perfectly Replicates Human Vision?

In my world, a "perfect" robotic eyeball has been created. This eyeball is electronic, but it emulates a human eye perfectly. This does not necessarily mean that it has millions of synthetic cones ...
4
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6answers
420 views

Sentient trees. Can they develop technology?

Flying insects are the only moving animals in this world - they take care of pollination. Adult trees (over 10 years old) are rooted to the spot with very wide-spreading root systems. Trying to ...
4
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7answers
759 views

Impact on the sciences with helium instead of nitrogen

Suppose we have a planet whose atmosphere has roughly the same gaseous proportions as Earth, but helium replaces nitrogen, and has a strong hydrogen presence in the upper atmosphere; has a ...
3
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2answers
249 views

is it possible to detect submarines in a sea from an aircraft? if possible how will it be?

While working on my story, I just came up with this doubt. Is it possible to know or to detect something like a submarine in an ocean from an aircraft with our current technology? I mean to detect it ...
3
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3answers
972 views

How Would Magnetic Weapons Work? [closed]

Magnetic weapons have been a part of the Sci-Fi genre for a while and I have recently started writing a story that would implement magnetic weapons, I'm talking about magnetic revolvers, rifles, and ...
3
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4answers
297 views

How to fly around the Martian thin layer of sky without burning holes in our pockets?

In the late 21st century C.E. total human population on the Martian soil reaches 5 millions with the majority inbred. They are scattered across the red planet living in football field sized domes and ...
3
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3answers
349 views

Can planes fly on Mars?

My question is very simple, I want to know if the Martian atmosphere is too thin to hold planes up and, if it is thick enough, how high planes could reasonably go. This is considering heat management ...
2
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4answers
360 views

How broken would my jPhone be if I traveled back in time 24 hours?

I have a character who ends up jumping backwards in time by 24 hours. Essentially nothing else changes, but the character has their jPhone in their pocket at the time of the jump. How functional ...
2
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1answer
168 views

Sudden enrichment of heavier elements and its impact to medieval/renaissance society

Disclaimer Building from this question, and both of this answer by John_H, and this by Samuel, I'm going to compose a new question quite related yet not quite similar. Background So we have a world ...
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4answers
224 views

What could be a possible way to avoid the effects of time travel on the traveller? [closed]

Let me explain... you have a time traveler from the year 10,000. The traveler has a device that has all of recorded history up until 10,000 a.d. in it, like a text book to be read. If that traveler ...
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9answers
476 views

Speeding up technological development using a time machine [closed]

Imagine that we have invented time machine. Now we can go back in time okay? Now if we go back in time and teach our ancestors thing which were discovered or invented thousands of year later after ...
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1answer
1k views

gruesome execution by slow dissolution in low-concentration acid solution [closed]

How about a new, very gruesome method of execution? The condemned person is placed in a vat filled with a low-concentration acid solution and he is kept alive as long as possible (IV feeding, ...
21
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12answers
5k views

What would be an ideal breathable atmosphere for a planet so that fire couldn't start naturally?

I want to have an intelligent life-form on a planet, but I want this life form to be technologically limited because of the lack of discovery of fire. What changes would have to occur in the ...