Search
In a class discussion last week, someone pointed out that a typical core collapse supernova releases $\sim10^{46}\text{ J}$ of energy in the form of (anti-)neutrinos while only radiating $\sim10^{4...
What would be differently perceived from a person with broader visual spectrum than normal? So I've seen this question, especially the accepted answer, and it certainly is not what I'm looking for...
Setting: "One Big Lie" Sci-fi RPG The lies in this setting are an extension of relativity with a couple of extra dimensions allowing for FTL/Backwards Time Travel, and Thaumons. Thaumons (Magic B...
I was doing some research on how to design a scientifically possible alien, when I came across an interesting section on metabolism. I found it very interesting and read about the weak force, as op...
I am looking for some guidance in creating a chemical element. I want to know if it is scientifically plausible for a single fictional element to do all the things I need it to, even if at a stretc...
How could a Faster than light drive be limited to only travelling between different solar systems, and not within a solar system? I don't really want to allow travel between planets in the same sol...
Inspired by the answers to What can I add to an oxygen/nitrogen atmosphere to make it unpalatable or poisonous to humans, yet stable and breathable to local creatures?, I am building a planet that ...
Ok so I've been going around on the internet trying to figure out whether or not when 2 earth like planets of similar densities and makeup collide is it possible for them to bounce off of each othe...
I have seen many science fiction movies that depict traveling in space through wormholes. The appearance though, and the time it takes to cross a wormhole, tends to vary: On one hand, we have the...
In a previous question on this site I asked about the side effects of a having ludicrously strong, permanent, static magnetic field on the surface of a planet, capable of pulling in non-magnetized ...
There exists a Universe in which all of outer-space is filled with some form of human-breathable air. Theoretically, you could fly a Zeppelin up there and explore other worlds, with a sufficiently ...
In the near future Science Fiction novel I am writing, the personality and memory of a person are transferred to an artificial brain after a fatal accident, creating an artificial intelligence with...
In an effort to work out a believable form of faster-than-light communications for my setting, I've ruled out a few things: wormholes (which are in use, but are too random in where they lead, to be...
I was reading on another question (this one) and was thinking "What if those bullets could return?" What I am looking for is: Practicality Cost effective Combat effective Manufacturability
We occasionally get questions and answers that discuss how close to each other planets can be and still meet some criteria. For example, this answer to the question ''Habitable'' planet close to a ...
I'd like to be able to see from my Earth-like planet, a very bright nebula that can even be seen during the daytime. I question, however, whether that is possible, because in order for it to be co...
I'm going to use the US model for the simple reason that I'm most familiar with it. Constraints and assumptions In the US, legislative representation is by region (state) and population levels. ...
Robots (intelligent machines using some form of artificial intelligence), are central to the plot in a snippet I'm working on. These robots do not have to interact with humans on a regular basis: m...
A staple of science fiction is substances like 'durasteel' or 'tritanium', which, through generally unexplained means, have vastly superior material qualities when compared to conventional material...
Far away, across the vastness of space, lies an alien civilization, who are pretty similar to us. They've got ice cream, peer to peer networking, and photography. More importantly, they do lots of ...
How can a character explain baryon asymmetry (there is more matter than antimatter) by the universe being a simulation with a slightly imbalanced random number generator being employed at the point...
Water is different from air, and sound waves propagate through water in a different way than they do in air (caused in part by interactions with the bottom of the body of water). For a society livi...
I request some help with the design of one particular denizen of my fantasy world, tentatively named Boar Troll. It needs to be an ungulate or closely related creature with emerging sentience, and...
You are probably aware of that certain radioactive things glow, usually a soft green. But is there any way to add compounds or what have you to achieve a different color, say, orange? I know Chere...
The current world population is around 7 billion living people and 107 billion dead people. Since the population is increasing steadily and faster than ever, I was wondering if we could ever reach ...
