Questions tagged [chemistry]

For questions that have to do with chemistry, chemical reactions be they biological or artificial, or the industrial processes of chemistry.

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4
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1answer
199 views

What conditions would support mercury as bodily fluid?

I got to thinking a simple throwaway thought on this video where this dude flushes mercury in a toilet (in a closed loop) For one thing, it's easy to think about the properties of mercury (mostly its ...
88
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13answers
24k views

Lembas bread (2000 Calories per bite)

In the lord of rings the elves invented an incredibly nutritious bread/biscuit, as Legolas clearly says only a small bite is just enough to satisfy the needs of an adult man for 1 day. An adult ...
4
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2answers
387 views

Napoleonic chemical warfare

What kinds of chemical warfare agents would be possible to synthesize and store (including binary ones, which are two precursors mixed during or immediately before firing) at an industrial scale with ...
10
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5answers
3k views

Cryogenic grenades in medieval time

In the 12th century China invented primitive rocket launchers, repeating ballistas, guns and cannons and a lot of other crazy gun powder based weapons. So I wonder could the same level of technology ...
11
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13answers
3k views

What recreational drugs can be produced with limited resources and technology?

Setting: Earth-sized planet, its inhabitants are human settlers and live in towns protected by custom-sized atmospheres. The rest of the planet is barren and always was. The population uses the ...
22
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4answers
5k views

Is homicidal smiley gas possible?

In the 1989 Batman movie[1], My question is simple; is there currently, or is there a way to make, a chemical that can make someone "smile to death". I imagine that such a substance would cause the ...
-3
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1answer
77 views

What macro-sized things can be made with a hydrocarbon assembler?

In a near future society, man will be mining asteroids far from Earth. One technology on board their ships is a hydrocarbon assembler. It takes in energy, water and carbonaceous asteroid matter and ...
4
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1answer
142 views

Realistic controlled illusion

Using pre-industrial era technology how does an intelligent creature create the perfect illusion that reproduces vision,sound and touch sensations and make them seem perfectly ''real'' from the ...
-2
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4answers
8k views

What metals have similar properties to iron and iron alloys? [closed]

I'm writing a book set in a zombie apocalypse. It has been under this apocalypse so 50 years. Iron is one of the zombies' only weaknesses. Iron mining techniques at the time of the start of the ...
6
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3answers
487 views

Any websites with exhaustively long lists of dead planet types?

Is there any websites on the web where a long site of semi-plausible worlds can be found? I am looking for all sorts of weird, colorful worlds that are lifeless and terrestrial. For I think it's fun ...
13
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6answers
5k views

Would the atmosphere of an alien planet with the following mixture of gases be breathable to humans?

35% O2 (oxygen) 61% Ar (argon) 1.07% CO2 (carbon dioxide) 0.93% As arsenic 2% Other trace elements On an exoplanet with a mass of 0.284 Earths and a surface gravity of .66 gs (6.44 m/s^2), would this ...
2
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6answers
383 views

Regulating Love Potions

One can indeed brew love in a bottle The love potion set comes with two vials. One is for the intended lovee, and one for the lover. The lovee must drink their potion first, and will be emitting ...
2
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2answers
228 views

Nitrogen oxide atmosphere: Breathing masks

So, I've got a planet with this atmosphere. The composition is: 60% NO 20% NO2 10% N2O 5% N2 5% O2 traces of CO, CO2. The surface pressure is 0.7 atm, temperatures range from -30 to +30 degrees ...
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4answers
1k views

How would modern firearms behave in a high oxygen atmosphere?

If people time-travelled back to when Earth had a lot more oxygen in the atmosphere (35% instead of today's 21%) what would be the effect when they started shooting? Mainly small arms. Would spent ...
5
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1answer
444 views

Color of a nitrogen oxide atmosphere

I've got a planet with a very special atmosphere. The properties are as follows: Surface pressure = 0.7 atm Composition: 60% NO 20% NO2 10% N2O 5% N2 5% O2 traces of CO, CO2 My question is: What ...
4
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1answer
664 views

Nitrogen oxide atmosphere

We all know that Titan has an atmosphere that consists mainly of N2. What I want to have is a planet with an atmosphere that consists mainly of various nitrogen oxides (NO, NO2, N2O). My questions ...
3
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4answers
243 views

Atoms as elementary particles? [closed]

Imagine a universe in which atoms are elementary particles. Before the late 1800s it seemed that atoms were indivisible particles. In a universe in which atoms are elementary particles there would ...
6
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2answers
582 views

Fictional drug where withdrawal is fatal? (like Melange in Dune)

Could a chemical compound change a human body in a way that a regular quantity of that compound is needed to stay alive after the first dose? The short answer would be yes, there are already such ...
18
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2answers
2k views

Starbuilding: What is lacking in the logic behind Cosmos 2 star system generation algorithm?

Preamble The Alternity Cosmos II is a complement to a dice role-playing game that uses heuristics based on hard-science to 'build' plausible star systems for the Alternity game: http://www....
6
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3answers
445 views

Insect-like animal using water for blood?

The habitat of the creature in question is most commonly atop mountains (or in moist areas). Such an idea would mean that the creature wouldn't need a heart or stomach to break down things into blood. ...
2
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3answers
287 views

Could there be a planet that is naturally comprised of elements past ununoctium?

Because elements are classified by the number of protons they have, could there potentially be planets or environments that are so dense that they are made up of elements potentially greater than ...
5
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4answers
408 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 ...
3
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2answers
170 views

How do I store Helium in a large space colony?

My space colonies are mainly located onto large, partialy terraformed moons in our solar system. They still travel using rockets but due to their vessels' large size they need very powerful propulsion ...
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3answers
2k views

Blue Cryovolcanic Planet

Everybody, even those who are complete beginners in the field of Astronomy, know Io, the cryovolcanic moon of Jupiter that looks like a burned pizza with skin cancer. Volcanoes constantly spit out ...
17
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1answer
793 views

As we increase the size and mass of a world, at what point does it become impossible for a rocket to achieve an orbit or escape velocity?

Many authors describe worlds with higher gravity than our own, from whence super-muscular aliens originate. However, as we increased the size, mass and surface gravity of a world; there would be ...
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5answers
2k views

What substances would be really valuable if transmuting material printers would exist?

Far Future. Almost every household has a 'fabber'. You put raw materials in it (can be almost anything) and it does what you program it to do. It transmutes the raw materials into what is needed. Then ...
11
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3answers
491 views

How to get monsters with literal nerves of steel?

Which solvent to use for metal nerves? Based on this answer on to how to evolve biological radios, the answer states that if creatures in an ecosystem utilize metal for electrical transmission ...
5
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2answers
766 views

Could there be a (pseudo-)scientific explanation for a green atomic breath?

Everyone familiar with Godzilla should know of his iconic blue atomic breath. I've seen "theories" (technically not really theories) on how Godzilla's atomic breath works on the web. However, what ...
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6answers
1k views

How much can we learn from a grain of sand?

I've wondered about this for years. Reading one of the books in the Inheritance Cycle, I came across a stipulation. It stated that if observed enough, a grain of sand could render to the viewer the ...
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4answers
3k views

How do nanites get the resources that they need?

I've been mulling over the idea of nanites (microscopic machines that perform work - usually to transform one material into another). I've come to the conclusion that at a macroscopic level, nanites ...
5
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6answers
4k views

Could you weaponize LSD gas?

Yesterday I was thinking about LSD, and how drugging an enemy soldier with it would probably really screw up their plans of staying safe and being alive. The problem I'm still having, though, is the ...
7
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4answers
647 views

What are some biochemical alternatives to carbon?

I am making a universe and I thought that it would be unrealistic for all life forms in my entire universe to be based upon carbon. I am aware of silicon as a possible replacement, but I'm looking ...
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2answers
148 views

Where will I spend eternity [closed]

I walked past a church today, and it had a poster outside saying 'Where will you spend eternity' Which got me thinking Ignoring what my immortal soul might get up to, where will my body spend ...
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1answer
211 views

Methanol/Ethanol (other alcohol) based life-form and its planet? [closed]

This is the second part of my first question, where I've asked about an alien-civilization which uses methanol/ethanol/other alcohol as a solvent instead of water. In this question, I'm more ...
3
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2answers
968 views

Methanol/Ethanol (other alcohol) based life-form - aliens?

Purely hypothetical and kind of creative quesiton. My idea is an alien humanoid-like civilization (and basically everything alive on that planet) which uses methanol/ethanol or other alcohol as a ...
16
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5answers
4k views

Oxygen - 100% plant-free!

Context for Question The colonisation of the planet [ INSERT NAME ] was an enormous social experiment performed by the Terran Planetary Science and Terraforming Council; this previously-barren world ...
90
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17answers
15k views

Are there logical gaps in the periodic table in which you could insert a new mystery element for use as a fuel?

As in the title. We have the modern periodic table: In a potential near (or far) future setting humanity discovers a new element which serves as the basis for a cleaner, higher energy density fuel ...
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2answers
336 views

Universe where Earth fire, air, and water would actually be the four elements? [closed]

In ancient times it was believed that the four elements that made up the universe were Earth, fire, air, and water. I was thinking of a universe where there are four basic elements that are similar ...
21
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10answers
4k views

How can I keep my Love Potion formula from being stolen? [closed]

I finally managed to make and test my Love Potion, and I'm ready to sell tiny vials at exorbitant rates. But I'm afraid someone is going to analyze it, and steal the recipe. Is there a way to lock ...
4
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1answer
300 views

Breathing underwater

A few years ago, an isolated tribe was found in the middle of South America. They seemed to be a normal tribe, but near their village is a lake with a special property- you can breath underwater ...
3
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3answers
130 views

What's a macroscopic chemical unit as a scale for alien communication?

Let's say we're composing a message intended for radio transmission to intelligent alien life. We'd like to talk about sizes and distances, so we'll need a unit of length. We're already planning to ...
4
votes
1answer
267 views

How much Sulfur Dioxide is needed to freeze life on earth?

This is inspired by What single element could destroy the world?. Injecting sulfur dioxide into the atmosphere has been proposed as a mechanism to relieve the symptoms of global warming by creating a ...
2
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1answer
192 views

Materials for a nanofabricated giant monster

In How large a bioengineered mobile lifeform could exist on Earth?, I asked how big my nanoassembled war beasts could be, and it was suggested that I make my question more specific. I am designing a ...
6
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4answers
767 views

What common chemical/physical reactions would, in an atmosphere composed of ~20% Oxygen and ~80% Argon, behave differently than on Earth?

Ignoring how this sort of atmosphere would come about, what are some things that happen regularly on Earth that would be altered by this sort of atmosphere? Example: Would firearms still ignite ...
8
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3answers
456 views

Will my worlds not be salty enough to support animal life?

I read on the cooking.stackexchange site that all natural salt on Earth was created by seas and oceans, starting with primordial oceans four billion years ago. This got me thinking about my fictional ...
3
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8answers
831 views

How to destroy/decimate life on earth with chemicals?

If a country could produce compounds magically within a foot of them, given that the necessary atoms/elements are already there (could convert water to hydrogen peroxide, coal to diamond, Salt and ...
25
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7answers
4k views

What are some plausible super materials? [closed]

Background Science fiction is rife with "super materials". Most often the materials are made from elements unknown to Current Era (CE) science. They use names that make us think of elements without ...
3
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2answers
282 views

Carbon-based life planet with a plenitude of infinite energy crystals. Could it exist?

Carbon-based life planet with a plenitude of infinite energy crystals. Could it exist? Somehow, when my planet cooled down, there were crystals that output a fixed amount of electromagnetic radiation ...
15
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1answer
10k views

Drug which lets you forget everything

We all know how the story starts: He woke up in strange room, not remembering who he was or how did he got to the room. But that was not his problem. Problem was the first writing he saw: "HELLO, I ...
11
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4answers
760 views

Chemistry in two spatial dimensions?

I know that someone has asked how chemistry would be in four dimensions but I was wondering what would chemistry be like in two dimensions? From what I understand, in two dimensions, particles, ...

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